Element Names and Symbols
Number of Protons
Number of Neutrons
Isotopes
100

The symbol for this element is N.

What is Nitrogen?

100

This element has 6 protons.

What is Carbon?

100

The number of neutrons in Fluorine.

What is 10?

100

The number of neutrons in Lithium-6?

What is 3?

200

The symbol of this element is Na.

What is Sodium?

200

This element has 15 protons.

What is Phosphorus?

200

The number of neutrons in Aluminum.

What is 14?

200

The number of neutrons in Oxygen-20?

What is 12?

300

The symbol of this element is Sn.

What is Tin?

300

This element has 30 protons.

What is Zinc?

300

The number of neutrons in Calcium.

What is 20?

300

The number of neutrons in Neon-26?

What is 16?

400

The name of this element is Mercury.

What is Hg?

400

This element has 47 protons.

What is Silver?

400

The number of neutrons in Nickel.

What is 31?

400

The number of neutrons in Silicon-32?

What is 18?

500

The name of this element is Iron.

What is Fe?

500

This element has 53 protons.

Iodine

500

The number of neutrons in Lead.

What is 125?

500

The number of neutrons in Uranium-250?

What is 158?

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