All About Atoms!

What is an atom?

• the smallest unit of life
• the smallest unit of matter
• anything that has mass and takes up space
• anything that has mass and gravity

The 3 subatomic particles are ____________, ________________, and _____________ .

• protons, neutrons, and quarks
• protons, volume, and electrons
• protons, neutrons, and carbon
• protons, neutrons, and electrons

What are the parts of an atom?

• nucleus, shells/orbits
• nucleus, Golgi body, cell wall
• nucleus, chloroplasts, cell wall

The nucleus of an atom has a _____________ charge.

• positive
• negative
• neutral

What is the charge of a proton?

• negative
• neutral
• positive

True or False: Two different elements can have the same atomic number.

• True
• False

What is the charge of a neutron?

• negative
• neutral
• positive

What is the charge of an electron?

• negative
• neutral
• positive

Which subatomic particles are located in the shells/orbits of an atom?

• electrons
• neutrons
• protons
• quarks

True or False: Protons have a positive charge.

• True
• False