Atomic Structure

Question 1

The law of conservation of mass

Answer 1

States that matter is neither created nor destroyed in the course of a chemical reaction

Question 2

Atomic number

Answer 2

Of an element is the number of protons in the nucleus of the atom of the element

Question 3

Mass number

Answer 3

Of an element is the number of proteins and neutrons in the nucleus of the atom of that element

Question 4

Isotopes

Answer 4

Atoms with the same number of protons but a different number of neutrons

Question 5

Relative atomic mass

Answer 5

Of an element thé the average mass of an atom of an element relative to 1/12 the mass of an atom of carbon 12