Atoms and Elements

What is the chemical symbol for the element hydrogen

• H

• He

• h

• he

What is the chemical symbol for the element Silicon

• S

• Si

• si

• Sl

The horizontal row on the periodic table is called a

• group

• family

• period

• atomic number

A vertical column is called...

• group

• tower

• period

• crew

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

• both electrons and protons in an atom.

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

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

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

The subatomic particle with a negative charge is the

• electron
• proton
• neutron
• nucleus