Atoms and Elements

What is the chemical symbol for the element hydrogen

• H

• He

• h

• he

The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name

Tags

NGSS.MS-PS1-1

The atomic number tells you what?

• number of electrons

• number of protons

• number of neutrons

A proton is....

• A negatively charged subatomic particle
• A positively charged subatomic particle
• A neutrally charged subatomic particle
• The only subatomic particle located in the nucleus

Tags

NGSS.HS-PS1-8

The smallest particle of any particular type of matter is known by which of the following terms?

• Compound
• Atom
• Chemical
• Element

Tags

NGSS.MS-PS1-1

The subatomic particle with a negative charge is the

• electron
• proton
• neutron
• nucleus 

What is the atomic number?

• the number of protons

• the number of protons and neutrons

• the number of neutrons

• the number of protons and 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)

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

What kind of charge do neutrons have?

• positive 
• no charge

• negative

• -3