Intro to the periodic table

Question 1

What are the periods?

Answer 1

Horizontal rows are called periods, all elements in a period have the same number of shells. The period # is the number of shells

Question 2

What are the groups?

Answer 2

The vertical comluns are called groups, all elements in the same group have the same number of electrons in their valence shells. Elements in the same group are similar to eachother

Question 3

Which ones are metals

Answer 3

The ones on the left

Question 4

Which are non metals

Answer 4

The ones on the right (hyrogen is a non metal but is often put in the middle)

Question 5

What is a metal

Answer 5

A metal is defines as an element that has 1 2 or 3 valence elctrons

Question 6

How many valence electrons does a non metal have

Answer 6

4 or more electrons

Question 7

Which ones are the main groups

Answer 7

The ones from 1 to 7 going from left to right and the last group on the right is group 0 which are the noble gases with completely filled valence shells

Question 8

there are only 2 elements in period 1

Answer 8

Hydrogen and helium