Atoms, Ions, and Isotopes

Front

What particles determine the mass number?

Back

Protons and neutrons

Front

What is the mass number of bromine?

Back

80

Front

The atomic number is equal to _.

Back

the number of protons

Front

How many neutrons does this bromine atom have?

Back

45

Front

What is the mass number of this Neon atom?

Back

21

Front

How many electrons does this magnesium ion have?

Back

10

Front

What changes when an atom becomes an ion?

Back

The number of electrons

Front

How many neutrons does this Neon atom have?

Back

11

Front

What happened to this Magnesium atom to make it an ion?

Back

It LOST electrons

Front

What is the atomic number of this element? Options: 12, 24, 23, 35

Back

12