Periodic Table

This element is used to make aircraft and car parts:

The color of the chemical symbol (font color) tells you

The subatomic particle that is NOT found in the nucleus is the:

This represents the number of protons plus the number of neutrons in an atom of an element

Chlorine and iodine are disinfectants that can be found in this group:

The group of elements that are good conductors of heat and electricity is the

This gas makes up 80% of the air you breathe.

How many electrons go on the first ring or shell in a Bohr model?

If Boron has an atomic number of 5 and a mass number of 11, how many neutrons does it have?

The elements in this group are not reactive because their outer level is full of electrons.

The horizontal rows on the periodic table are called

When something happens repeatedly, like the days on a calendar, we call it

If Carbon has an atomic number of 6, how many electrons does it have?

Who was the first scientist to work with sorting the elements?

as you move across the periodic table from left to right, the properties of the elements ____

All of these elements are highly reactive and give off hydrogen when they react with water:

Which element is necessary for substances to burn?

This element is an odorless, colorless gas. It has only 1 proton.

This group includes elements that are used to make steel:

Two of the three subatomic particles have about the same mass of 1 amu; they are...