Periodic Table and Atoms

__________ are the smallest unit of an element that maintains the properties of the element.

• Particles

• Atoms

• Protons

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

A nucleus of an atom contains what two parts?

• Electrons and Protons

• Neutrons and Electrons

• Protons and Neutrons

Tags

NGSS.HS-PS1-8

If an atom has an atomic mass of 11 and contains 5 electrons, its atomic number would be______

• 11

• 5

• 6

Tags

NGSS.HS-PS1-1

How many neutrons does Chlorine (Cl) with an atomic number of 17 and an atomic mass of 35.

• 17

• 18

• 19

The subatomic particle with a neutral charge is:

• protons
• electrons
• neutrons
• cloud

What type of subatomic particles are found in the cloud?

• neutrons
• electrons
• protons
• reactions

Tags

NGSS.MS-PS1-1

What gives an atom mass?

• Protons & electrons in the nucleus
• electrons in the cloud
• protons & neutrons in the nucleus
• Protons & electrons in the cloud

Tags

NGSS.HS-PS1-7

If an element has 6 protons, 7 neutrons, and 6 electrons, what type of charge does the element have?

• positive
• negative
• neutral
• imaginary

Tags

NGSS.MS-PS1-1

If an atom has 24 protons and 24 electrons, what is the atomic number of this element?

• 24
• 48
• 0
• 42

Tags

NGSS.MS-PS1-1

How many protons does this element have?

• 40
• 21
• 20
• 41

Tags

NGSS.MS-PS1-1