Atoms Review

If Sodium (Na) has 11 Protons and atomic mass of 23, how many neutrons are there?

If Silicon (Si) has 14 protons and 14 neutrons, what is its atomic mass?

If Calcium (Ca) has 20 neutrons and an atomic mass of 40, how many protons does it have?

Tags

NGSS.MS-PS1-1

Aluminum has 13 protons and an atomic mass of 27. How many neutrons does it have?

Lithium (Li) has 3 protons and an atomic mass of 7. How many neutrons does Li have?

Beryllium has 5 neutrons and an atomic mass of 9. How many protons does it have?

Tags

NGSS.MS-PS1-1

Which subatomic particle has a negative charge?

• proton

• electron

• neutron

• nucleus

Which subatomic particle(s) is located outside the nucleus?

• neutron

• proton

• electron

• none

Which subatomic particle(s) are found in the nucleus?

• electrons

• protons

• neutrons

• all

• none

Which subatomic particle has a positive charge?

• neutron

• electron

• proton

• electron cloud