Atoms & Elements

How many electrons does Carbon have?

• 12.011

• 12

• 5

• 6

What does the atomic number tell us?

• The weight

• # of neutrons

• # of protons

• # of electrons

How many neutrons does H have?

• 1

• 0

• 1.0078

• 2.0078

What are the parts of an atom?

• neutrons

• protons

• neurons

• electrons

Use your periodic table to answer the following question.
Which of the following atoms has 14 electrons?

• Carbon (C)
• Silicon (Si)
• Sulfur (S)
• Argon (Ar)

Tags

NGSS.MS-PS1-1

Cobalt (Co) has 27 protons in each atom. Based on this information, which of the following also describes an atom of Cobalt?

• It has no neutrons.
• It has 27 electrons.
• It has 13 neutrons and 14 electrons.
• It has a total of 86 neutrons and electrons.

Tags

NGSS.MS-PS1-1

What makes an atom have a positive charge?

• more electrons than protons
• more neutrons than electrons
• more protons than electrons
• less protons than electrons

An atom has 54 protons, 54 electrons, and 131 neutrons. What is the atomic number of the atom?

• 54
• 77
• 131
• 185

Tags

NGSS.MS-PS1-1

The protons in an atom’s nucleus have what kind of charge?

• positive
• negative
• neutral
• no charge

What kind of charge do neutrons have?

• positive 
• negative
• neutral
• -3