Unit 1 Review

These are found in the nucleus and have a neutral charge.

• proton

• electron

• neutron

How many electrons does sulfur have

• 16

• 32

• 48

• 12

What are subatomic particles? 

• the nucleus 
• electron cloud
• positive charge
• electrons, protons, and neutrons

Which particles make up the nucleus of an atom?

• protons and neutrons
• electrons and protons
• electrons, protons, and neutrons
• electrons and neutrons

What is the mass number of this atom?

• 1

• 3

• 4

• 7

How many neutrons in C-14?

• 6
• 7
• 14
• 8

Isotopes of an element have a different number of...

• Protons

• Neutrons

• Electrons

• Mass

Nickel-59 has how many neutrons?

• 30

• 31

• 32

• 33

76 protons and 114 neutrons

• Osmium-114

• Osmium-76

• Osmium-190

• Osmium-190.23

Which of the following is true about isotopes?

• They have different atomic numbers.

• They have the same number of neutrons.

• They have the same number of protons.

• They are different elements.