The isotope atoms differ in - (1) number of neutrons (2) atomic number (3) number of electrons (4) atomic weight

The isotope atoms differ in - (1) number of neutrons (2) atomic number (3) number of electrons (4) atomic weight
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(1) number of neutrons Explanation: Important to note that isotope atoms have same atomic number.
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Which one of the following best defines the word “allotropes”? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between those of metals and nonmetals D Atoms of a given atomic number that have a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Description : Which one of the following best defines the word allotropes ? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between ... a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Last Answer : A Different structural forms of an element 

Atoms of different elements have - (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configuration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Description : Atoms of different elements have - (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configuration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Last Answer : (3) different atomic number and different number of valence electrons Explanation: Each element's atoms have a different number of protons, neutrons, and electrons, which is why they have different ... Their reactivity also varies because of the number and activeness of the electrons in the atom.

Atoms of different elements have (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configu-ration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Description : Atoms of different elements have (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configu-ration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons

Last Answer : different atomic number and different number of valence electrons

Atoms of U-238 and U-235 differ in structure by three (A) Electrons and three protons (B) Protons (C) Neutrons (D) Electrons

Description : Atoms of U-238 and U-235 differ in structure by three (A) Electrons and three protons (B) Protons (C) Neutrons (D) Electrons

Last Answer : (C) Neutrons

An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is?

Description : An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is?

Last Answer : Mass number = proton number + neutron number SO, Mass number(Aluminium) = 13+ 14 =27

An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is?

Description : An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is?

Last Answer : Mass number = proton number + neutron number SO, Mass number(Aluminium) = 13+ 14 =27

The atomic number of uranium is 92 and its atomic mass is 238.how many neutrons does the most common isotope of uranium have.?

Description : The atomic number of uranium is 92 and its atomic mass is 238.how many neutrons does the most common isotope of uranium have.?

Last Answer : The most common isotope of uranium is uranium-238 with 146 neutrons.

Atomic weight of an atom is (A) sum of the number of protons and neutrons. (B) sum of the number of protons and electrons. (C) sum of the number of electrons and neutrons. (D) sum of the number of electrons, protons and neutrons.

Description : Atomic weight of an atom is (A) sum of the number of protons and neutrons. (B) sum of the number of protons and electrons. (C) sum of the number of electrons and neutrons. (D) sum of the number of electrons, protons and neutrons.

Last Answer : (A) sum of the number of protons and neutrons.

Isotopes differ in - (1) No. of electrons (2) No. of protons (3) No. of neutrons (4) Chemical reactivity

Description : Isotopes differ in - (1) No. of electrons (2) No. of protons (3) No. of neutrons (4) Chemical reactivity

Last Answer : (3) No. of neutrons Explanation: Isotopes have the same atomic number because they are the same element but have a different atomic mass because they contain a different number of neutrons.

How many protons will remain when cobalt isotope with atomic number 27 losses 3 electrons?

Description : How many protons will remain when cobalt isotope with atomic number 27 losses 3 electrons?

Last Answer : 110 to 114

An atom of an element with mass number 23 and atomic number 11 will have- (1) 11 neutrons, 12 protons and 11 electrons (2) 11 protons, 12 neutrons and 11 electrons (3) 11 protons, 12 electrons and 11 neutrons (4) 23 protons and 11 electrons

Description : An atom of an element with mass number 23 and atomic number 11 will have- (1) 11 neutrons, 12 protons and 11 electrons (2) 11 protons, 12 neutrons and 11 electrons (3) 11 protons, 12 electrons and 11 neutrons (4) 23 protons and 11 electrons

Last Answer : (2) 11 protons, 12 neutrons and 11 electrons

Atomic number of an atom gives the number of which of the following? (1) electrons (2) protons (3) neutrons (4) neutrons and protons

Description : Atomic number of an atom gives the number of which of the following? (1) electrons (2) protons (3) neutrons (4) neutrons and protons

Last Answer : (2) protons Explanation: Atomic number of a chemical element is the number of protons found in the nucleus of an atom of that element, and therefore identical to the charge number of the nucleus. ... periodic table. In an uncharged atom, the atomic number is also equal to the number of electrons.

Atomic number is equal to - (1) Number of electrons (2) Number of neutron (3) Number of protons (4) Total number of protons and neutrons

Description : Atomic number is equal to - (1) Number of electrons (2) Number of neutron (3) Number of protons (4) Total number of protons and neutrons

Last Answer : (3) Number of protons Explanation: Atomic number is equal to Number of protons. The atomic number or proton number of a chemical element is the number of protons found in the nucleus of an atom.

Atomic number of an atom gives the number of which of the following? (1) electrons (2) protons (3) neutrons (4) neutrons and protons

Description : Atomic number of an atom gives the number of which of the following? (1) electrons (2) protons (3) neutrons (4) neutrons and protons

Last Answer : (2) protons Explanation: The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom.

Atomic number of an atom gives the number of which of the following ? (1) electrons (2) protons (3) neutrons (4) neutrons and protons

Description : Atomic number of an atom gives the number of which of the following ? (1) electrons (2) protons (3) neutrons (4) neutrons and protons

Last Answer : protons

Rutherford’s scattering experiment proved the presence of - (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleusin atoms

Description : Rutherford’s scattering experiment proved the presence of - (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleusin atoms

Last Answer : (4) nucleusin atoms Explanation: Ernest Rutherford and his fellows Geiger and Marsden proved between 1911 and 1913 the existence of the atomic nucleus. This scattering experirnent led to the development of the Rutherford model (planetary model) of the atom, and eventually to the Bohr model.

The nuclei of heavy atoms generally contain: w) more electrons than neutrons x) more protons than electrons y) more neutrons than electrons z) more orbitals than electrons

Description : The nuclei of heavy atoms generally contain: w) more electrons than neutrons x) more protons than electrons y) more neutrons than electrons z) more orbitals than electrons

Last Answer : ANSWER: Y -- MORE NEUTRONS THAN ELECTRONS

Rutherford’s scattering experiment proved the presence of (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleus in atoms

Description : Rutherford’s scattering experiment proved the presence of (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleus in atoms

Last Answer : nucleus in atoms

Isotopes of the same element differ in the number of (a) Protons (b) Neutrons (c) Electrons (d) Positrons

Description : Isotopes of the same element differ in the number of (a) Protons (b) Neutrons (c) Electrons (d) Positrons

Last Answer : Ans:(a)

The bond most likely to be formed when two atoms differ SOMEWHAT in their tendency to attract electrons is: w) nonpolar ionic x) polar ionic y) polar covalent z) nonpolar covalent

Description : The bond most likely to be formed when two atoms differ SOMEWHAT in their tendency to attract electrons is: w) nonpolar ionic x) polar ionic y) polar covalent z) nonpolar covalent

Last Answer : ANSWER: Y -- POLAR COVALENT

The periodic table arranges elements by the number of ____ in their outermost energy levels. a. neutrons c. protons b. atoms d. electrons

Description : The periodic table arranges elements by the number of ____ in their outermost energy levels. a. neutrons c. protons b. atoms d. electrons

Last Answer : d. electrons

For an element , if atomic number (Z) and mass number (A) are 29 and 63 respectively . Then the number of protons , neutrons and electrons respectivel

Description : For an element , if atomic number (Z) and mass number (A) are 29 and 63 respectively . Then the number of protons , neutrons and electrons respectivel

Last Answer : For an element , if atomic number (Z) and mass number (A) are 29 and 63 respectively . Then the number of protons ... C. 29 , 34 ,29 D. 29 , 29 , 29

For an `Al^(+3)` ion , if atomic number (Z) =13 and number of neutrons is 14 . Then the number of electrons in will be :-

Description : For an `Al^(+3)` ion , if atomic number (Z) =13 and number of neutrons is 14 . Then the number of electrons in will be :-

Last Answer : For an `Al^(+3)` ion , if atomic number (Z) =13 and number of neutrons is 14 . Then the number of electrons in will be :- A. 13 B. 12 C. 10 D. 11

The atomic number of an element is equal to the number of __________ present in its atom. (A) Neutrons (B) Electrons (C) Protons (D) Either (B) or (C)

Description : The atomic number of an element is equal to the number of __________ present in its atom. (A) Neutrons (B) Electrons (C) Protons (D) Either (B) or (C)

Last Answer : (D) Either (B) or (C)

Which of these statements is false All atoms are alike. All electrons are alike. All neutrons are alike. All protons are alike.?

Description : Which of these statements is false All atoms are alike. All electrons are alike. All neutrons are alike. All protons are alike.?

Last Answer : True statements: All neutrons are alike, all electrons are alike, all protons are alike (All atoms of a given isotope is only alike). False statement: All atoms are alike All atoms are not alike as they may vary in the number of protons / electrons / neutrons.

Rutherford's scattering experiment proved the presence of – (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleus in atoms

Description : Rutherford's scattering experiment proved the presence of – (1) atoms in all matter (2) electrons in atoms (3) neutrons in atoms (4) nucleus in atoms

Last Answer : (4) nucleus in atoms Explanation: On the basis of his experiment, Rutherford put forward the model of an atom, which had the following features: There is a positively charged centre in an atom called the nucleus.

Atoms with varying mass numbers are called ________. a. Electrons b. Ions c. Isotopes d. Neutrons

Description : Atoms with varying mass numbers are called ________. a. Electrons b. Ions c. Isotopes d. Neutrons

Last Answer : c. Isotopes

These positively charged particles are found in the atomic nucleus. a. Protons only b. Electrons only c. Protons and neutrons d. Neutrons only

Description : These positively charged particles are found in the atomic nucleus. a. Protons only b. Electrons only c. Protons and neutrons d. Neutrons only

Last Answer : a. Protons only

Heavy water is so called because it contains - (1) Heavy isotope of hydrogen (2) Heavy isotope of oxygen (3) Mole number of hydrogen atoms (4) Mole number of oxygen atoms

Description : Heavy water is so called because it contains - (1) Heavy isotope of hydrogen (2) Heavy isotope of oxygen (3) Mole number of hydrogen atoms (4) Mole number of oxygen atoms

Last Answer : (1) Heavy isotope of hydrogen Explanation: Heavy water, formally called deuterium oxide, is a form of "water that contains a larger than normal amount of the hydrogen isotope deuterium, (also known as ... ) rather than the common hydrogen-1 isotope that makes up most of the hydrogen in normal water.

Heavy water is so called because it contains (1) Heavy isotope of hydrogen (2) Heavy isotope of oxygen (3) Mole number of hydrogen atoms (4) Mole number of oxygen atoms

Description : Heavy water is so called because it contains (1) Heavy isotope of hydrogen (2) Heavy isotope of oxygen (3) Mole number of hydrogen atoms (4) Mole number of oxygen atoms

Last Answer : Heavy isotope of hydrogen

The mass number of a nucleus is - (1) always less than its atomic number (2) the sum of the number of protons and neutrons present in the nucleus (3) always more than the atomic weight (4) a fraction

Description : The mass number of a nucleus is - (1) always less than its atomic number (2) the sum of the number of protons and neutrons present in the nucleus (3) always more than the atomic weight (4) a fraction

Last Answer : (2) the sum of the number of protons and neutrons present in the nucleus

If an isotope of silicon has 15 neutrons what is the mass number?

Description : If an isotope of silicon has 15 neutrons what is the mass number?

Last Answer : Need answer

If the heaviest isotope was more abundant and the other two isotopes were less abundant what would happen to the atomic weight of beanium?

Description : If the heaviest isotope was more abundant and the other two isotopes were less abundant what would happen to the atomic weight of beanium?

Last Answer : What is the answer ?

What isotope has 12 protons and 13 neutrons?

Description : What isotope has 12 protons and 13 neutrons?

Last Answer : Need answer

How many protons and neutrons are in the nucleus of isotope with mass of 68.926?

Description : How many protons and neutrons are in the nucleus of isotope with mass of 68.926?

Last Answer : p,n =31,38P=31 (from Periodic Table)N= 68.926-31=37.926

How many neutrons are in an isotope of chlorine 36?

Description : How many neutrons are in an isotope of chlorine 36?

Last Answer : Chlorine-36 has 19 electrons.

How many neutrons does isotope krypton 86 have?

Description : How many neutrons does isotope krypton 86 have?

Last Answer : Feel Free to Answer

How many neutrons does a isotope of hydrogen have?

Description : How many neutrons does a isotope of hydrogen have?

Last Answer : Need answer

What is the uranium isotope with 144 neutrons?

Description : What is the uranium isotope with 144 neutrons?

Last Answer : This the isotope uranium-236.

Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons

Description : Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons

Last Answer : (A) Atomic weights

Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons

Description : Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons

Last Answer : (A) Atomic weights

The isotope used for the production of atomic energy is - (1) U-235 (2) U-238 (3) U-234 (4) U-236

Description : The isotope used for the production of atomic energy is - (1) U-235 (2) U-238 (3) U-234 (4) U-236

Last Answer : (1) U-235 Explanation: U235 is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope U238 it is fissile, i.e., it can sustain fission chain reaction. It ... critical, and the mass of U required to produce the critical condition is said to be a critical mass.

The isotope of Uranium used in atomic reactors is – (1) U^235 (2) (2) U^236 (3) U^237 (4) U^232

Description : The isotope of Uranium used in atomic reactors is – (1) U^235 (2) (2) U^236 (3) U^237 (4) U^232

Last Answer : (1) U^235 Explanation: A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are used for generating electricity and for the propulsion of ships ... fissile atomic nucleus such as U235 or U239 absorbs a neutron, it may undergo nuclear fission.

The isotope used for the production of atomic energy is (1) U-235 (2) U-238 (3) U-234 (4) U-236

Description : The isotope used for the production of atomic energy is (1) U-235 (2) U-238 (3) U-234 (4) U-236

Last Answer : U-235

Pick out the correct statement. (A) Loss of electrons from neutral atoms produces negative ions (B) The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 - 8 cm respectively (C) Gain of electrons by neutral atoms form cations

Description : Pick out the correct statement. (A) Loss of electrons from neutral atoms produces negative ions (B) The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 - 8 cm respectively (C) Gain of electrons by neutral atoms form cations

Last Answer : (B) The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 - 8 cm respectivel

The mass number of a nucleus is (a) Always less than its atomic number (b) The sum of the number of protons and neutrons present in the nucleus (c) Always more than the atomic weight (d) A fraction

Description : The mass number of a nucleus is (a) Always less than its atomic number (b) The sum of the number of protons and neutrons present in the nucleus (c) Always more than the atomic weight (d) A fraction

Last Answer : Ans:(b)

The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element? (A) A + Z (B) A - Z (C) A (D) Z

Description : The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element? (A) A + Z (B) A - Z (C) A (D) Z

Last Answer : (B) A - Z

Isotopes of an element have the same (A) Number of neutrons (B) Mass number (C) Electronic configuration (D) Atomic weight

Description : Isotopes of an element have the same (A) Number of neutrons (B) Mass number (C) Electronic configuration (D) Atomic weight

Last Answer : (C) Electronic configuration

How many neutrons are present in the nucleus of an element with an atomic weight of 119 and an atomic number of 50?

Description : How many neutrons are present in the nucleus of an element with an atomic weight of 119 and an atomic number of 50? 

Last Answer : ANSWER: 69

Atoms having the same number of protons but different number of neutrons are called : (1) Isotopes (2) Cations (3) Higgs-boson (4) Anions .

Description : Atoms having the same number of protons but different number of neutrons are called : (1) Isotopes (2) Cations (3) Higgs-boson (4) Anions .

Last Answer : (1) Isotopes Explanation: Atoms that have the same number of protons but different numbers of neutrons are called isotopes. For example, carbon-12, carbon13 and carbon-14 are three isotopes of the element ... has 6 protons, so that the neutron numbers of these isotopes are 6, 7 and 8 respectively.