Atoms, Molecules, and the Periodic Table

The first energy level can hold up to how many electrons?

• 8
• 4
• 2
• 5

Tags

NGSS.MS-PS1-1

What is the atomic mass of "F"

• 9
• 18
• 17
• 19

Tags

NGSS.MS-PS1-1

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

Tags

NGSS.MS-PS1-1

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

How many neutrons are in the atom "K"?

• 7

• 2

• 39

• 20

How many protons does this element contain?

• 14

• 7

• 15

• 18

Tags

NGSS.MS-PS1-1

Molecules are 

• 2 atoms bound together 
• 2 elements bound together 
• 2 or more atoms mixed together
• 2 or more atoms bound together 

Tags

NGSS.MS-PS1-1

What do we call a substance consisting of a single atom?

• coefficient
• element
• compound
• molecule

What do we call a chemical substance made up of 2 or more different types atoms bonded together?

• formula
• atom
• subscript
• compound

Tags

NGSS.MS-PS1-1