Chapter 2.1 Atoms

What is matter?

• Any substance that doesn't take up space

• Any substance that takes up space and has mass.

• Any substance that exists on Earth.

• Any substance that exists in space.

Select the elements that are most common in living things. (SELECT ALL THAT APPLY)

• Carbon

• Helium

• Hydrogen

• Oxygen

Subatomic particle with a charge of 0

• neutron
• proton
• electron
• quark

Subatomic particle with a charge of -1

• proton
• electron
• neutron
• quark

The nucleus of an atom is made of

• electrons and protons
• electrons and neutrons
• protons and neutrons
• empty space

Tags

NGSS.MS-PS1-1

The atom's mass is determined by the number of 

• protons and neutrons
• protons and electrons
• neutrons and electrons

The number of these determines which element an atom is.

• neutrons
• electrons
• protons

Isotopes of an element have a different number of...

• Protons

• Neutrons

• Electrons

• Mass

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NGSS.HS-PS1-8

Potassium-39 has how many neutrons?

• 19

• 18

• 20

• 21

Tags

NGSS.MS-PS1-1

Nickel-59 has how many neutrons?

• 30

• 31

• 32

• 33

Tags

NGSS.MS-PS1-1