Periodic Table
Elements
Missing components
Element
100

How is the periodic table prganized?

By atomic number (increases to the right)

100

I have 2 protons and 2 neutrons

Helium (He)

100

I am Silver (Ag), with 47 electrons. How many protons do I have?

47 protons

100

82

Pb

Lead

207.2

How many protons do I have?

82 protons

200

What does the atomic mass tell us?

The amount of protons and neutrons on a nucleus

200

I have 19 electrons, what am I?

Potassium (K)

200

I am Aluminum with 13 protons and an atomic mass of 27. How many electrons do I have?

13 electrons

200

94

Pu

Plutonium

244.064

How many electrons do I have?

94 electrons

300

What does the atomic number tell us?

The number of protons (and electrons if neutral) there are in an atom

300

I have 7 protons and neutrons, what am I?

Nitrogen (N)

300

I am nitrogen (N), with 7 electrons and a mass of 14. How many neutrons do I have?

7 neutrons

300

79

Au

Gold

196.967

What is my atomic mass?


196.967

400

What do the groups (vertical) tell us?

how many valence electrons there are

400

I have 14 neutrons and a mass of 28, what am I?

Silicone (Si)

400

I am Boron (B), with an atomic number of 5. How many valence electrons do I have?

3 valence electrons

400

14

Si

Silicon

28.086

How many neutrons do I have?

14 neutrons