Atomic Number
Element Symbols
Subatomic Particles
Periodic Table
Misc.
100
The atomic number for Xenon?
What is 54.
100
The element symbol for Iodine?
What is I.
100
The number of protons in element Samarium?

62 (Atomic Number)

150 (Atomic Mass)

What is 62.
100
The group that Cesium is listed under?

55 (Atomic Number)

What is 55.
100
The number of valence electrons in the element Neon?

10 (Atomic Number)

What is 8.
200

The atomic number for Europium?

What is 63.
200

The element symbol for Cerium?

What is Ce.
200
The number of electrons in the element Rhenium?

75 (Atomic Number)

186 (Atomic Mass)


What is 75.
200
The one non-metal in the metals group?
What is hydrogen.
200
The creator of the periodic table?
Who is Gregory Mendeleev.
300

The atomic number for Tellurium?

What is 52.
300

The element symbol for Lanthanum?

What is La.
300
How many protons and electrons are in the element?

70 (Atomic Number)

173(Atomic Mass)

What is 140. (70 protons, 70 electrons)
300
The period that Barium is listed under?

56 (Atomic Number)

What is 6.
300
The number of groups on the periodic table?
What is 18.
400

The atomic number for Neodymium?

What is 60.
400

The element symbol for Promethium?

What is Pm.
400
How many neutrons are in the element Erbium?

68 (Atomic Number)

167 (Atomic Mass)

What is 99.
400
The classification of the element Rhenium?
What is a transition metal.
400
The number of periods of the periodic table?
What is 7.
500

The atomic number for Gadolinium?

What is 64.
500

The element symbol for Antimony?

What is Sb.
500
The number of neutrons in the element Lutetium?

71 (Atomic Number)

175 (Atomic Mass)

What is 104.
500
The classification of the element Tellurium?
What is a semiconductor.
500
The group that contains all of the noble gasses?
What is group 18.
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