Chemistry Review

What information does a subscript number tell us?

• the number of atoms per element

• the number of molecules per formula

Tags

NGSS.MS-PS1-1

What is the atomic mass for this element?

• 6

• 12.0107

• 6.0107

• 18.0107

How many molecules are in the Reactant?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many neutrons are in an Calcium atom?

• 20

• 40.08

• 60

Tags

NGSS.MS-PS1-1

How many valence electrons does Silicon Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

Tags

NGSS.MS-PS1-1

Which element is represented by the symbol 'O' in the periodic table?

• Gold

• Oxygen

• Osmium

• Oganesson

Which item on this element square is the chemical symbol?

• Copper

• 29

• Cu

• 63.546

Made up of only 1 type of atom

• Compound

• Molecule

• Element

• Mixture

Tags

NGSS.MS-PS1-1

Which of these samples shown best represents an element?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

This shows a table salt molecule. What is it?

• compound

• element

• mixture

Tags

NGSS.MS-PS1-1