A(n) _______________________ cannot be broken down into any other substance.

• mixture

• atom

• element

• compound

Fe is the ___________________ for iron

• atomic number

• chemical symbol

• atomic mass

• protons

All atoms are made of __________________.

• protons

• neutrons

• electrons

• oxygen

Tags

NGSS.MS-PS1-1

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

Which subatomic particle is located outside the nucleus?

• Proton

• Neutron

• Electron

Which subatomic particle is located inside the nucleus?

• Proton

• Neutron

• Electron

Which subatomic particle has a positive charge?

• Proton

• Neutron

• Electron

Which subatomic particle has no charge?

• Proton

• Neutron

• Electron

It is the number of ________________ that distinguish one element from another.

• Protons

• Neutrons

• Electrons

• Atomic Mass

Tags

NGSS.MS-PS1-1

How many neutrons does Platinum (Pt) have?(round to the nearest whole number)

• 78

• 195

• 117

• 273

Tags

NGSS.MS-PS1-1