Atomic Structure

Which of the following particles has the smallest mass?

• neutron
• proton
• nucleus
• electron

What is true about an atom?

• Most of the space in an atom is taken up by the nucleus
• Atoms are mostly empty space
• Atoms have no mass
• Electrons have much more mass that protons or neutrons.

Tags

NGSS.MS-PS1-1

Matter that is made up on only one type of atom is called

• a compound
• a subatomic particle
• an element
• water

Tags

NGSS.MS-PS1-1

The term "neutral" means

• having only a little bit of charge
• having a positive charge
• having a negative charge
• having no charge at all

The atomic number identifies the number of __________.

• electrons

• atoms

• protons

• neutrons

In what part of an atom can the protons and neutrons be found?

• nucleus

• neutrine

• electron cloud

• proton cloud

Which parts of the atom move around the nucleus?

• electrons

• protons

• electrode particles

• neutrons

What charge does an electron have?

• positive

• neutral

• negative

Tags

NGSS.MS-PS2-3

What type of charge does a proton have?

• positive

• negative

• neutral

What mass does a neutron have?

• 1
• 0
• -1
• +2