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

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nucleus in atoms

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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.

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.

Description : Fill in the blanks in the following statements (a) Rutherford’s α-particle scattering experiment led to the discovery of the ——— -Science

Last Answer : Rutherford’s α-particle scattering experiment led to the discovery of the nucleus

Description : Rutherford’s scattering experiment related to the size of which thing?

Last Answer : Nucleus

Description : In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the ... its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom

Last Answer : ANSWER: Y -- MOST OF THE MASS OF A GOLD ATOM IS IN ITS NUCLEUS

Description : Which of the following does the Nucleus of an atom consist of? (1) Protons and neutrons (2) Protons and electrons (3) Electrons (4) Protons

Last Answer : (1) Protons and neutrons Explanation: The nucleus is the small, dense region consisting of protons and neutrons at the center of an atom. Protons and neutrons are bound together to form a ... nucleus was discovered in 1911 by Ernest Rutherford based on the 1909 Geiger-Marsden gold foil experiment.

Description : What nucleus of atom contains? (1) protons (2) electrons (3) electrons and protons (4) protons and neutrons

Last Answer : (4) protons and neutrons Explanation: The nucleus, that dense central core of the atom, contains both protons and neutrons. Electrons are outside the nucleus in energy levels.

Description : What particles move around the nucleus of an atom and are negatively charged? (1) Electrons (2) Protons (3) Positrons (4) Neutrons

Last Answer : (1) Electrons Explanation: Circling around outside the nucleus are tiny little particles called electrons. Electrons have a negative charge. Electrons spin as they circle the nucleus billions of times every ... or lose energy, they jump between energy levels as they are rotating around the nucleus.

Description : The nucleus of an atom consists of - (1) electrons and neutrons (2) electrons and protons (3) protons and neutrons (4) All of the above

Last Answer : (3) protons and neutrons Explanation: The atomic nucleus consists of nucleons—protons and neutrons. Protons and neutrons are made of quarks and held together by the strong force generated by gluon exchange between quarks.

Description : The nucleus of an atom consists of - (1) electrons and neutrons (2) electrons and protons (3) protons and neutrons (4) All of the above

Last Answer : (3) protons and neutrons Explanation: The atomic nucleus consists of nucleons—protons and neutrons. Protons and neutrons are made of quarks and held together by the strong force generated by gluon exchange between quarks.

Description : Which of the following does the Nucleus of an atom consist of? (1) Protons and neutrons (2) Protons and electrons (3) Electrons (4) Protons

Last Answer : Protons and neutrons

Description : The chemical bahaviour of an atom depends upon (1) the number of protons in its nucleus (2) the number of neutrons in the nucleus (3) the number of electrons orbiting around the nucleus (4) the number of nucleons in the nucleus

Last Answer : the number of electrons orbiting around the nucleus

Description : What particles move around the nucleus of an atom and are negatively charged? (1) Electrons (2) Protons (3) Positrons (4) Neutrons 

Last Answer : Electrons

Description : In the Gold foil experiment of Geiger and Marsden, that paved the way for Rutherford’s model of an atom, ~ 1.00% of the α-particles were found to deflect at angles > 50º. If one mole of α- -Science

Last Answer : Total number of α particles used for bombardment = 1 mole 1 mole=6.022×1023 particles number of α particles deflected at angles greater than 50°(>50°)= 1% Number of α particles ... at angles less than 50°= 99/100 × 6.022 × 1023 =5.96 × 1023

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.

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

Last Answer : (1) number of neutrons Explanation: Important to note that isotope atoms have same atomic number.

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

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

Description : (3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of ... , and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

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Description : When an Atom of carbon has 6 protons and 7 neutrons in its nucleus if the atom is neutral how many electrons does it have?

Last Answer : Need answer

Description : The nucleus of an atom consists of (a) Protons + Electrons (b) Only Protons (c) Protons + neutrons + electrons (d) Protons and neutrons

Last Answer : Ans:(d)

Description : Pick out the wrong statement. (A) The disintegration rate of a radioactive substance cannot be increased by heating it (B) Electrons have negligible mass and unit negative change (C) Deuterium atom has one proton and two neutrons in its nucleus (D) Cadmium is capable of absorbing neutrons

Last Answer : (C) Deuterium atom has one proton and two neutrons in its nucleus

Description : The mass number of an element is equal to the number of __________ in the nucleus. (A) Electrons (B) Neutrons (C) Protons (D) Neutrons plus protons (i.e., nucleons)

Last Answer : (D) Neutrons plus protons (i.e., nucleons)

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Last Answer : A. Protons,Neutrons & Electrons (Answer)

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

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.

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

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

Last Answer : c. Isotopes

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Last Answer : d. electrons

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Last Answer : reflection of light due to the presence of free electrons

Description : The difference between isotopes of an element is due to the presence of a different number of (a) Protons (b) Neutrons (c) Electrons (d) Photons

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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

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Description : Enlist the conclusions drawn by Rutherford from his α-ray scattering experiment. -Science

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Description : What did the alpha scattering experiment reveal?

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

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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

Description : An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is– (1) 17 (2) 19 (3) 36 (4) 53

Last Answer : (2) 19 Explanation: Mass Number = number of protons (atomic number) + nu.sriber of neutrons. So as per the question, 36= number of neutrons + 17. Number of neutrons= 36 -17= 19

Description : Which one of the following takes place during a nuclear fusion? (1) a heavy nucleus bombarded by neutrons breaks up (2) a heavy nucleus breaks up spontaneously (3) two light nuclei combine to form a heavy nucleus (4) a light nucleus breaks up spontaneously

Last Answer : two light nuclei combine to form a heavy nucleus

Description : An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is (1) 17 (2) 19 (3) 36 (4) 53

Last Answer : 19

Description : .Experiments on Acetabularia by Hammerling proved the role of (a) cytoplasm in controlling differentiation (b) nucleus in heredity (c) chromosomes in heredity (d) nucleo-cytoplasmic ratio.

Last Answer : (b) nucleus in heredity

Description : Explain briefly the defects in Rutherford’s Atomic Model.

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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.

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 

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 : Isotopes

Description : Who first explained the billiard-ball-like collisions photons make with the free electrons in a scattering material? He received the Nobel Prize in Physics in 1927 for this work.

Last Answer : ANSWER: ARTHUR HOLLY COMPTON

Description : The scientist who proved that the ele- ments are made up of atoms?

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