Subatomic Particles & Such
Charges
Doing the Math
Periodic Trends
Other
100

The subatomic particles found within the nucleus. 

What are protons and neutrons?

100

Subatomic particle with a negative charge. 

What is an electron?

100

The number of neutrons in hydrogen (H). 

What is zero?

100

The number of valence electrons in a nitrogen atom. 

What is 5?

100

The maximum number of valence electrons any atom can have. 

What is 8?

200

The subatomic particle located on the energy levels. 

What is an electron?

200

Subatomic particle with a neutral charge. 

What is a neutron?

200

The number of protons in sulfur (S).

What is 16?

200
The number of energy levels in a calcium (Ca) atom.

What is 4?

200

The largest amount of energy levels any atom can have. 

What is 7?

300

The name of the electron location within an atom.

What are energy levels?

300

Subatomic particle with a positive charge. 

What is a proton?

300

The number of electrons in Bromine (Br).

What is 35?

300

The number of valence electrons in a Krypton (Kr) atom.

What is 8?

300

The number of groups on a periodic table.

What is 18? 

400

The center part of an atom. 

What is a nucleus?

400

Charge of a nucleus.

What is positive?

400

The number of neutrons in Titanium (Ti). 

What is 26?

400

The number of energy levels in an Iron (Fe) atom. 

What is 4?

400

The number of periods on a periodic table.

What is 7?

500

The electrons located on the outermost energy level. 

What are valence electrons?

500

Charge of an atom?

What is neutral?

500

The atomic mass of Barium (Ba).

What is 137?

500

The element with 34 protons and 45 neutrons. 

What is Selenium (Se)?

500
The category of elements that we cannot predict valence electron amounts for.

What are transition metals?

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