Distinguish between atomic number and atomic mass?

Answer 1

The Atomic Number of an element is equal to the number of Protons/Electrons in the nucleus and the Atomic Weight is approximately the total number of Protons/Electrons and Neutrons combined. Using Carbon as an example: Total Protons/Electrons = 6, therefore the Atomic Number is 6

Total Neutrons = 6, and the Atomic Weight is 12 Question? The Atomic Number of Lithium = 3

The Atomic Weight of Lithium = 7 How many Protons/Electrons?

How many Neutrons? Answer: Protons/Electrons = 3

Neutrons = 4

Answer 2

The atomic number is the number of protons an element has. The atomic weight is the ratio of the average mass to 1/12 of an atom of carbon-12's mass. The Atomic Mass is the total number of protons, neutrons, and electrons.

Answer 3

The atomic mass is the total number of protons and neutrons within the nucleus of an atom. The atomic weight is an elements relative atomic mass; the ratio of the average mass per atom of the naturally occurring form of an element to one twelfth (i.e. 1 / 12) of the mass of a carbon-12 atom.

Answer 4

atomic number is number of electrons or protons in an atom of an element where as atomic mass number is sum of protons and neutrons in an atom of an element

Answer 5

atomic number is the number of protons in an atom

mass number is the number of protons plus neutrons in an atom

Answer 6

Atomic mass is the mass of an atom in atomic mass units, and includes protons, neutrons, and electrons; and atomic number is the number of protons in the nucleus of the atom.

Answer 7

atomic number is the number of protons in an atom

mass number is the number of protons plus neutrons in an atom

Answer 8

Atomic number = Number of protonsAtomic weight = Weight of protons

• weight of neutrons

Answer 9

the atomic number tells you how many protons are in the atom and the atomic mass tells you how much the element weights