UNIT 2 ASSESSMENT

What is found in the nucleus of atoms?

• Protons and electrons.
• Protons, neutrons, and electrons.
• Protons and neutrons.
• Neutrons and electrons.

Tags

NGSS.MS-PS1-1

Which is an electron?

• A
• B
• C

Tags

NGSS.MS-PS1-1

What element is represented in this Bohr Model? 

• Carbon

• Hydrogen

• Aluminum

• Lithium

Tags

NGSS.MS-PS1-1

What is the atomic number?

• The number of protons in an element
• The number of neutrons in an element
• The number of protons and neutrons.
• The number of protons and electrons.

Tags

NGSS.MS-PS1-1

Each row in the periodic table is called a 

• group
• period
• cluster
• unit

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

Where are the most nonmetals located on the periodic table?

• In the bottom row
• On the left side and in the middle
• On the right side
• In the top row

The blue elements (left side) are called 

• metals
• nonmetals
• metalloids
• noble gases

Two protons _________ each other.

• Repel

• Attract

Tags

NGSS.HS-PS2-4

Two electrons _________ each other.

• Repel

• Attract

Tags

NGSS.MS-PS2-3