Periodic Table
Physical or Chemical
Name that Element
Atomic Mass
Valence Electrons
100

What do Hydrogen, Sodium, and Potassium have in common?

They are all in the first Column of the Periodic Table and have one valence electron.

100
Burning a piece of fire wood
What is chemical
100

Ar

Argon

100
The atomic mass of Radon
What is 222
100

How many valence electrons does Boron have?

What is 3
200
The number of noble gases
What is six
200
Vinegar plus baking soda creates a new gas substance
What is chemical
200

Na

Sodium

200

Hydrogen in its stable, neutral form has this many neutrons.

What is zero.

200

Which element has the same number of valence electrons as Carbon,

Ruthenium, Neon, Germanium or Magnesium?

What is Germanium

300
The group number of Alkali metals
What is one
300

Growing an ammonium phosphate crystal in a beaker

What is physical

300

K

Potassium

300
The total mass of He and Pb
What is 213.1
300

Why does water form as H2O molecules instead of HO molecules?

Because an atom of Oxygen has space in its valence shell for two more electrons, and each Hydrogen atom has one valence electron.

400
The number of protons that Mg has
What is twelve
400

Casting silver jewelry in a mold

What is physical

400

Fe

Iron

400
The total mass of Vanadium and Hydrogen
What is 51.94
400

Although any atom can ionize if enough energy is applied, some are very unlikely. Why is Krypton unlikely to form an ion?

Krypton is one of the Noble Gasses on the far right side of the Periodic Table, and like Helium, Neon, and Argon, has a full valence shell of 8 electrons. It is already very stable and has little reason to gain or lose any electrons.

500

This element is named after the scientist who first came up with the idea of the Periodic Table of Elements. 

What is Mendelevium

500
A rusting nail
What is chemical
500

Ag

Silver

500
The number of neutrons in Mercury
What is 120.59
500

What is the charge of a a sodium ion after it has bonded with fluorine to create sodium fluoride?

What is +1

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