PT, Atoms, Isotopes, Nuclear Chemistry

Which two families on the periodic table react aggressively?

• noble gases and alkali metals
• alkali metals and halogens
• noble gases and halogens
• metals and halogens

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What section is the least reactive? 

• yellow
• red
• dark blue
• orange

The atomic number tells you what?

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

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

In what section would Transition Metals be found?

• orange
• light blue
• blue
• white

Tags

NGSS.HS-PS1-1

What are the first two elements on the periodic table?

• hydrogen and helium
• hydrogen and lithium
• hydrogen and carbon
• nitrogen and helium

Tags

NGSS.HS-PS1-1

Elements on the left side of the periodic table are 

• metals
• nonmetals
• metalloids
• noble gases

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

Which elements have the most similar chemical properties?

• K and Na
• K and Ca
• K and Cl
• K and S

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals
• alkaline earth metals
• halogens
• noble gases