Atoms, Elements and the Periodic Table

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

A neutron has a charge of

• +2
• No charge
• -1
• +1

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

NGSS.HS-PS1-1

How many protons are in Beryllium?

• 4
• 9
• 5
• 2

Tags

NGSS.MS-PS1-1

What is the chemical symbol for Lithium?

• H
• He
• Li
• N

Tags

NGSS.HS-PS1-1

Most of the elements on the periodic table are classified as "metal".

• True
• False

Each element is, usually, given one or two letters known as a chemical symbol.

• True
• False

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• Particles

• Atoms

• Protons

Tags

NGSS.MS-PS1-1

A nucleus of an atom contains what two parts?

• Electrons and Protons

• Neutrons and Electrons

• Protons and Neutrons

Tags

NGSS.HS-PS1-8