Unit 1 Atomic Structure Test Review

Which atomic particle has a negative charge?

• proton
• neutron
• electron
• all of the above

Which of these phrases best describes an atom?

• a positive nucleus surrounded by a hard negative shell
• a positive nucleus surrounded by a cloud of negative charges
• a hard sphere with postive and negative charges on the outside
• a negative nucleus surrounded by protons and neutrons

Tags

NGSS.MS-PS1-1

What is true about an atom?

• Most of the space in an atom is taken up by the nucleus
• Atoms are mostly empty space
• Atoms have no mass
• Electrons have much more mass that protons or neutrons.

Tags

NGSS.MS-PS1-1

The positively charged parts of an atom are the

• protons
• electron clouds
• neutrons
• electrons

Tags

NGSS.MS-PS1-1

Matter that is made up on only one type of atom is called

• a compound
• a subatomic particle
• an element
• water

Tags

NGSS.HS-PS1-1

The term "neutral" means

• having only a little bit of charge
• having a positive charge
• having a negative charge
• having no charge at all

What is one way Neutrons are different from electrons?

• they both are negative

• neutrons have no charge, while electrons have a negative charge

• Both are in the nucleus( center of atom)

• Electrons are inside nucleus and neutrons are outside the nucleus.

Tags

NGSS.MS-PS1-1

What is the atomic number?

• 35

• 18

• 17

• 52

Tags

NGSS.HS-PS1-1

What is the atomic mass of Neon?

• 10

• 20

• 30

Tags

NGSS.HS-PS1-1

How many neutrons does calcium have?

• 20

• 40

• 60

• 0

Tags

NGSS.HS-PS1-8