Atomic Structure and Scientists

Front

What subatomic particle controls the identity of the atom?

Back

Proton

Front

Which of the following is NOT true about isotopes of the same element?

Back

They have the same mass.

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

What is the most abundant isotope of Magnesium?

Back

Mg-24

Front

What number goes in the top right of a nuclear symbol?

Back

Charge

Front

How many electrons does an atom with 29 protons have?

Back

29 electrons.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the atomic mass of an element?

Back

The atomic mass is the weighted average mass of an element's isotopes.

Front

What is the charge of a proton?

Back

+1

Front

What is the charge of a neutron?

Back

0 (neutral)