Atomic Structure

Symbol

100

H

Hydrogen

200

Mg

Magnessium

300

Hg

Mercury

400

Mo

Molybdenum

500

Hf

Halfnium

Electron Configuration

100

1s²

Helium (He)

200

[He] 2s¹

Lithium (Li)

300

[He] 2s² 2p⁴

Carbon (C)

400

[Ne] 3s² 3p⁵

Chlorine (Cl)

500

[Ar] 3d⁴ 4s²

Chromium (Cr)

Proton and Neutron Count

100

Protons: 2

Neutrons: 2

Helium (He)

200

Protons: 7

Neutrons: 7

Nitrogen (N)

300

Protons: 35

Neutrons: 44

Bromine (Br)

400

Protons:74

Neutrons:108

Tungsten (W)

500

Protons: 118

Neutrons: 176

Oganesson (Og)

Reverse Symbol

100

Oxygen

O

200

Silicon

Si

300

Potassium

K

400

Lead

Pb

500

Antimony

Sb

Atom Anatomy

100

The negative particles that orbit an atom

What are electrons?

200

The dense core of an atom

What is the nucleus?

300

The positive particles in the core of an atom

What are protons?

400

The lowest energy spherical electron orbital

What is the 1s orbital?

500

The 2nd lowest energy hourglass-shaped orbital

The 3p orbital