Atomic structure and chemical formulas

The negatively charged particles in an atom are: 

• protons
• neutrons
• electrons

How many neutrons are contained in a neutral atom of: 

• 7
• 14
• 8
• 9

Tags

NGSS.MS-PS1-1

The atomic mass of an atom equals _ + _

• protons + neutrons
• protons + electrons
• neutrons + electrons
• nucleus + electron cloud

Which particle does not contribute mass to the atom?

• Proton
• Neutron
• Electron
• Nucleus

How many protons are in this element?

• 79
• 196
• 117
• Cannot be determined

How many atoms of carbon (C) are in C₆H₁₂O₆?

• 3
• 6
• 12
• 24

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

Element or compound?
H₂O

• element
• compound

Element or compound?
O₂

• Element
• Compound

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3