The Atom

What subatomic particle(s) would be found orbiting the nucleus?

• Neutrons only
• Electrons only
• Protons and Neutrons
• Protons and Electrons

Of the three subatomic particles, which is the smallest and the lightest?

• protons 
• neutrons
• electrons
• They are all equal.

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• DNA and RN

All matter is made of ______.

• energy

• atoms

• electrons

• compounds

An atom has:

8 Protons

7 Neutrons

6 Electrons

What is the total charge?

How many electrons are in Aluminium?

• 40

• 27

• 13

• 14

How many protons are in Sodium?

• 11

• 22

• 12

• 33

Which element is this?

• Nickel

• Neon

• Sodium

• Nitrogen

An atomic number of 8 means the atom has ________ protons.

• 7

• 8

• 16

• 88

True or False? Neutrons have a negative charge

• True
• False