Atoms and periodic table

Atoms

100

The positively charged particle in atoms 

Protons

200

The negatively charged particle in an atom

Electrons

300

The center of the atom that contains protons and neutrons

Nucleus

400

The number of electrons that can fit in the first shell is

2

500

In a neutral atom, the number of protons and electrons is ____

the same

Non metal hunt

100

Atomic number 3

Lithium (Li)

200

Mass number 17

Chlorine (Cl)

300

In group 1

Hydrogen (H)

400

Has 4 electrons

Beryllium (Be)

500

Has 8 neutrons

Oxygen (O) 

Metal hunt

100

Mass number 11

Sodium (Na)

200

Symbol Ca

Calcium

300

Symbol Cu

Copper 

400

Atomic mass 18.99

Fluorine (F)

500

Has 20 neutrons

Potassium (K) 

Metalloid hunt

100

Mass number 31 

Gallium (Ga)

200

In group 17

Astatine (At) 

300

Has 51 electrons

Antimony (Sb) 

400

In period 2

Boron

500

In group 13, period 5

Indium (In)

Periodic table

100

The number of periods in the table

7

200

Columns in the periodic table are called

Groups

300

The number of elements in the periodic table

118

400

The number of families in the periodic table

9

500

What group has the noble gases?

8