The Atom 4.2

Question 1

A subatomic particle that has a positive charge and that is located in the nucleus of an atom; the number of protons in the nucleus is the atomic number, which determines the identity of an element

Answer 1

Proton

Question 2

A unit of mass that describes the mass of an atom or molecule; it is exactly 1/12 of the mass of a carbon atom with mass number 12 (symbol, amu)

Answer 2

Atomic Mass Unit

Question 3

A subatomic particle that has no charge and that is located in the nucleus of an atom

Answer 3

Neutron

Question 4

The number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element

Answer 4

Atomic Number

Question 5

An atom that has the same number of protons (or the same atomic number) as other atoms of the same element do but that has a different number of neutrons (and thus a different atomic mass)

Answer 5

Isotope

Question 6

The sum of the numbers of protons and neutrons in the nucleus of an atom

Answer 6

Mass Number

Question 7

The number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element

Answer 7

Atomic Number