PERIODIC TABLE OF ELEMENTS

Front

Who invented the Periodic Table?

Back

Mendeleev

Front

As you move left to right on a row or period what happens?

Back

Atomic number increases by 1

Front

What happens to the number of shells as you move down a group?

Back

They increase by 1

Front

The first energy shell can hold ______ electrons.

Back

2

Front

Do all elements in the same row have the same number of shells?

Back

True

Front

Mendeleev's genius was his ability to

Back

predict elements that were not discovered yet

Front

Valence

Back

outside

Front

Elements in the same group or column have the same ...

Back

# of valence electrons

Front

Rows on the periodic table are called ___________.

Back

Periods

Front

Elements in the same group have __________

Back

Similar Properties