Atomic weight is also known as relative atomic mass. An atomic weight of an element from a specified source is the ratio of the average mass per atom of the element to 112th of the mass of an atom of carbon C-12. It consists of protons and neutrons.
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Similar Questions
Q1
Which of the following statement is always correct?
(a) an atom has equal number of electrons and protons
(b) an atom has equal number of electrons and neutrons
(c) an atom has equal number of protons and neutrons
(d) an atom has equal number of electrons, protons and neutrons
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Q2
An atom has 26 electrons and its atomic weight is 56. The number of neutrons in the nucleus of the atom will be
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Q3
Question 17
Which of the following statement is always correct?
(a) An atom has equal number of electrons and protons
(b) An atom has equal number of electrons and neutrons
(c) An atom has equal number of protons and neutrons
(d) An atom has equal number of electrons, protons and neutrons
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Q4
An atomic number is equivalent to the number of protons and neutrons in the atom.
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Q5
The mass of an atom is due to the mass of its nucleus and the nucleus of an atom contains protons and neutrons, together called as nucleons.