PSB: Atoms and Isotopes

Which subatomic particle has a positive charge?

• proton

• neutron

• electron

• midichlorian

Which subatomic particle has a negative charge?

• proton

• neutron

• electron

• cybertron

What is the center of an atom called?

• The headquarters

• The isotope

• The ion

• The nucleus

The nucleus of an atom contains which subatomic particles?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• protons, electrons, and neutrons

The nucleus of an atom contains which subatomic particles?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• protons, electrons, and neutrons

What is the atomic mass of Neon?

• 20

• 20.18

• 10.18

• 30.18

How many electrons does a neutral Copper atom have?

• 63

• 29

• 92

• 34

What is the atomic number for an element with 41 neutrons and a mass number of 80?

• 39
• 41
• 80
• 121

How many protons are present in phosphorus?

• 15

• 16

• 31

• 46

^{What does the 6 represent above the C}

• Symbol 
• Name 
• Mass Number 
• Atomic Number