Atoms and review

How many protons does Nitrogen have?

• 7

• 8

• 14

• 14.01

The positive particle in an atom.

• proton

• neutron

• electron

• electron cloud

Which of the labeled structures is a neutron?

• a

• b

• c

Which of the labeled structures is an electron?

• a

• b

• c

If an element has an atomic number of 11 and a mass number of 23, how many neutrons does it have?

• 11

• 12

• 23

• 34

Which of the following particles is NOT found in an atom's nucleus?

• proton

• neutron

• electron

What is the chemical symbol of this element?

• 79

• Au

• AU

• gold

What is the smallest living unit in a living thing?

• Atoms

• Cells

• Tissues

• Organelles

What are the three states of matter?

• solid, liquid, and gas
• solid, water, and gas
• wood, liquid, and gas
• solid, liquid, and helium

Solids have a definite _______________.

• smell
• shape
• picture
• sound