Periodic Table

Front

Which halogen is found in period 4?

Back

Bromine (Br)

Front

one or two letters that represent the name of an element

Back

element symbol

Front

a unique number for each element that equals the number of protons in an atom of that element

Back

atomic number

Front

What is the atomic number of Oxygen?

Back

8

Front

Name this group: These metals contain familiar metals such as gold, iron, and copper.

Back

Transition Metals

Front

What is the atomic mass of Carbon?

Back

12.01 u

Front

What is the group number for the noble gases?

Back

18

Front

What is the main characteristic of alkali metals?

Back

They are highly reactive and have one electron in their outer shell.

Front

What does the term 'period' refer to in the periodic table?

Back

A horizontal row of elements.

Front

What is the significance of the atomic number in the periodic table?

Back

It determines the identity of an element and its position in the periodic table.