Elements
Shorthand
Series
Who's that Isotope
Common Compounds
200

Li

Lithium

200

Neon

Ne

200

Highly reactive, soft, silver-colored metals with low densities and melting points

Alkali metals

200

Hydrogen

0

200

H20

Water

400

Xe

Xenon

400

Zinc

Zn

400

Chemically inert, colorless, tasteless, and odorless monoatomic non-metals

Noble gases

400

Oxygen

8

400

NaCl

Table salt

600

K

Potassium

600

Gold

Au

600

Nonmetallic, highly reactive elements that react with metals to produce a range of salts 

Halogens

600

Deuterium

1

600

Fe2O3

Rust

800

Ag

Gold

800

Rhodium

Rh

800

six highly reactive elements characterized by two valence electrons, a +2 oxidation state, and silvery-white, shiny appearances

Alkaline Earth metals

800

Helium

2

800

KNO3

Nitre

1000

Am

Americium

1000

Tungsten

W

1000

These elements exhibit contraction (decreasing atomic/ionic radius with higher atomic number) and possess unique optical/magnetic properties due to unfilled 4f orbitals 

Lanthanides

1000

Thulium

69

1000

C12H22O11

Sucrose

M
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