Atoms, The Periodic Table, Elements, Compounds, and Mixtures

These particles orbit around the nucleus of an atom.  What are they called?

• electrons

• protons

• neutrons

• photons

Tags

NGSS.MS-PS1-1

Use the model shown below to answer the following question. What is the mass number of the atom? (8.5A)

• 6

• 11

• 16

• 10

Tags

NGSS.MS-PS1-1

What are the three main parts of an atom?

• Proton, Neutron, Electron

• Proton, Neutron, Nucleus

• Electron, Nucleus, Shell

• Proton, Electron, Shell

Tags

NGSS.MS-PS1-1

What does the atomic number of an element represent?

• The number of neutrons in the nucleus

• The number of protons in the nucleus

• The total number of protons and neutrons

• The number of electrons in the outer shell

If an atom has an atomic number of 6 and a mass number of 14, how many neutrons does it have?

• 6

• 8

• 14

• 20

Tags

NGSS.MS-PS1-1

Label the parts of an atom.

a

b

c

d

e

electron

neutron

proton

nucleus

outer shell

Tags

NGSS.MS-PS1-1

The positively charged parts of an atom are the

• protons
• electron clouds
• neutrons
• electrons

Tags

NGSS.MS-PS1-1

The atomic particle with a negative charge is the...

• proton
• neutron
• electron
• nucleus

The smallest particle into which an element can be divided and still be the same substance

• neutron
• atom
• electron

Tags

NGSS.MS-PS1-1

What is the charge of a neutron?

• Variable

• Positive

• Negative

• Neutral