Description : The mass of one Avogadro number of helium atom is (a) 1.00 g (b) 4.00 g (c) 8.00 g (d) 6.02 × 1023 g
Last Answer : Ans:(b)
Description : What is the mass number of a helium atom that has 2 protons and 2 neutrons?
Last Answer : Need answer
Description : Pick out the wrong statement. (A) The ratio of the density of the 'nucleus' to that of the 'atom' is 10 12 (B) α-particle is identical with a doubly charged helium ion (C) The mass of deuterium atom is half that of helium atom (D) Gamma rays are high energy electrons
Last Answer : (D) Gamma rays are high energy electrons
Description : A sample of radioactive material has mass `m`, decay constant `lambda`, and molecular weight `M`. Avogadro constant `=N_(A)`. The initial activity of
Last Answer : A sample of radioactive material has mass `m`, decay constant `lambda`, and molecular weight `M`. Avogadro constant ... N_(4))/(M)` D. `mMe^(lambda)`
Description : What is the value of Avogadro number ?
Last Answer : Avogadro number value is 6.02 * (10 ৩ 23).
Description : What is the number of Avogadro ?
Last Answer : The number of molecules in an mole of an object is called the Avogadro number. It is expressed by. Its value is 6.023 × 1023
Description : What is Avogadro Number ? What is its value ?
Last Answer : One gram-molecule amount is equal to the number of molecules in any substance. This number is called the Avogadro number. The value of the Avogadro number: 6.023 x 1023 .
Description : What expresses the number Avogadro ?
Last Answer : Avogadro number is denoted by N.
Last Answer : The number of molecules in a 1 mole object is called the Avogadro number.
Last Answer : 6.023 * 1023
Description : write a shell program to find out the avogadro number?
Last Answer : cho "Enter A Number :" read n r=n s=0 rem=0 while [ $n -gt 0 ] do rem=$(($n%10)) s=$(($s+$rem*$rem*$rem)) n=$(($n/10)) done if [ $r -eq $s ] then echo "The Number is Avogadro" else echo "The Number is Not Avogadro" fi
Description : The value of Avogadro Number is - (1) 6.023 x 1022 (2) 6.023 x 1023 (3) 6.023 x 1024 (4) 6.023 x 1025
Last Answer : (2) 6.023 x 1023 Explanation: In chemistry and physics, the Avogadro constant is defined as the number of constituent particles (usually atoms or molecules) in one mole of a given substance. It has dimensions of reciprocal mol and its value is equal to.
Description : What is the value of Avogadro number?
Last Answer : 6.023 × 1023
Last Answer : 6.023 x 1023
Description : (4) less soluble in blood than nitrogen at high pressure Explanation: Deep-sea divers have their oxygen supply mixed with helium in order to avoid the toxic nature of oxygen under extreme pressures. The ... blood which blocks blood flow as the diver comes to the surface of the sea from underwater.
Last Answer : 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
Description : Alpha particle is the nucleus of an atom of – (1) Lithium (2) Hydrogen (3) Helium (4) Oxygen
Last Answer : (3) Helium Explanation: Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus, which is generally produced in the process of alpha decay.
Description : An a-particle is _____. (1) A hydrogen molecule (2) A helium nucleus (3) An atom of hydrogen (4) A proton
Last Answer : (2) A helium nucleus Explanation: Alpha particle, positively charged particle, identical to the nucleus of the helium-4 atom, spontaneously emitted by some radioactive substances, consisting of two protons and two neutrons bound together.
Description : A proton is identical to _____. (1) the nucleus of helium (2) the nucleus of a hydrogen atom (3) an alpha-particle (4) a beta particle
Last Answer : D. a beta particle
Description : When Helium atom Loses electron, then it becomes
Last Answer : Positive Helium ion
Description : All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent. (A) Deuterium (B) Hydrogen (C) Neon (D) Helium
Last Answer : (B) Hydrogen
Description : Alpha particle is the nucleus of an atom of (1) Lithium (2) Hydrogen (3) Helium (4) Oxygen
Last Answer : Helium
Description : What does avogadro mean ?
Last Answer : Avogadro number is the number of atoms , molecules or ions in a mole of atom , molecule or ion of a substance . Its value is 6.023 * 1023 .
Description : What is characteristic of 1 mole of gas at STP According to avogadro law?
Last Answer : It occupies 22.4 L
Description : Atomic themy of matter was given by – (1) Avogadro (2) Dalton (3) Newton (4) Pascal
Last Answer : (2) Dalton Explanation: Democritus first suggested the existence of the atom, but John Dalton (1766- 1844) is credited with the Atomic Theory of Matter. According to Dalton, all matter is made of ... and properties; and compounds are formed by a combination of two or more different kinds of atoms.
Description : Define (a) Dipole-Dipole Forces (b) Avogadro law (c) Intermolecular forces
Last Answer : Ans.(a) Dipole-dipole forces : The force of attraction which act between two molecules having permanent dipoles. (b) Avogadro Law : Equal volumes of all gases under the similar condition of ... . V α n (c) Intermolecular Forces: The forces of attractions and repulsion between interacting particles.
Description : Who invented the barometer? w) Torricelli x) Avogadro y) Rutherford z) Becquerel
Last Answer : ANSWER: W -- TORRICELLI
Description : "Under the same conditions of temperature and pressure, the volumes of reacting gases and of their gaseous products are expressed in ratios of small whole numbers." This law is attributed to: w) Dalton x) Gay-Lussac y) Ramsay z) Avogadro
Last Answer : ANSWER: X -- GAY-LUSSAC
Description : ‘Atomic theory’ of matter was given by (1) Avogadro (2) Dalton (3) Newton (4) Pascal
Last Answer : Dalton
Description : A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic mass 234, the
Last Answer : A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic ... )^(234)Th` D. `._(91)^(234)Pa`
Description : What is the relative atomic mass of helium ?
Last Answer : The relative atomic mass of helium is four.
Description : What is the mass in grams of one mole of helium atoms?
Last Answer : 6
Description : (2) it is lighter than air Explanation: Helium is the second lightest element and is the second most abundant element in the observable universe, being present at about 24% of the total elemental mass ... elements combined. A well-known but minor use is as a lifting gas in balloons and airships
Last Answer : Ammonial is a mixture of – (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate
Description : Neutrons have mass approximately equal to that of __________ atoms. (A) Hydrogen (B) Helium (C) Deuterium (D) None of these
Last Answer : (A) Hydrogen
Description : The mass number of an atom is equal to (a) The number of protons (b) The number of protons and electrons (c) The number of nucleons (d) The number of neutrons
Last Answer : Ans:(c)
Description : The mass number of an atom is equal to?
Last Answer : the number of nucleons
Description : What is the number of electrons in an atom of atomic number Z and mass number A? -Do You Know?
Last Answer : answer:
Description : What is the mass number of an atom that contains?
Last Answer : nucleons
Description : If a silicon atom contains 16 neutrons what is its mass number?
Last Answer : The mass number is 30.
Description : What is the atomic number of an atom with mass number 9 and 5 electrons?
Last Answer : The atomic number is the number of ProtonsThe mass number is the number of Protons and NeutronsThe number of Electrons always equals the number of ProtonsTherefore according to the above information the atomic ... an Atomic number of4Boron has an Atomic mass of 10.811 and an Atomic number of 5
Description : Why is the atomic mass of an element is usually not given as a whole number even though each individual atom of the element has a whole number of protons and neutrons.?
Last Answer : It's the electrons that throw it off.
Description : If an atom has 11 protons 12 neutrons and 11 electrons what is the identify of the element and it's mass number?
Last Answer : The mass number is 23; the element is sodium (Na-23).
Description : If the sodium atom contains 11 electrons 11 protons and 12 neutrons what is the mass number of sodium?
Last Answer : Feel Free to Answer
Description : If an atom has a mass number of 15 and an atomic number of 7 how many neutrons does it have?
Last Answer : What is the answer ?
Description : What is the mass number of a boron atom with 4 neutrons?
Description : How many electrons are present in an atom of mercury who is atomic number is 80 and whose mass number is 201?
Last Answer : 121 neutrons.
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
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 : What is the number of electrons in an atom of atomic number Z and mass number A?
Last Answer : Z
Description : 1. What is the number of electrons in an atom of atomic number Z and mass number A? 2. With which of the following fields is M. F. Hussain associated? 3. Which is the Slack Season' in ... 19. What are Shield volcanoes? 20. Mughal dynasty was to Bahadur Shah Zafar-as what was Lodi dynasty to?
Last Answer : Answer : 1. Z 2. Painting 3. Jan.-June 4. Australia 5. Valanadu 6. Stomata 7. 9th December, 1946 8. Measuring flask 9. China 10. Rajaraja Chola I 11. Vocal music 12. Abidjan 13. ... N. Rao 17. By radiation only 18. Useful but need strict regulation 19. Repeated lava flows 20. Ibrahim Lodi