Define the terms atomic number and atomic mass with one example
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Answer:
The number of protons and neutrons combined to give us the mass number of an atom. It is represented using the letter 'A.' As both protons and neutrons are present in the nucleus of an atom, they are together called nucleons. For example, an atom of carbon has 6 protons and 6 neutrons. Thus, its mass number is 12.Oct
Answer:
The atomic number is equal to the number of protons in an atom's nucleus. The atomic number determines which element an atom is. For example, any atom that contains exactly 47 protons in its nucleus is an atom of silver.
An atomic mass (symbol: ma) is the mass of a single atom of a chemical element. It includes the masses of the 3 subatomic particles that make up an atom: protons, neutrons and electrons. ... 1 atomic mass unit is defined as 1/12 of the mass of a single carbon-12 atom. 1 u has a value of 1.660 539 066 60(50) × 10−27 kg.
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