The smallest unit of matter and everything is made up of them

*Silver-gray
*Conducts electricity
*Nonmagnetic
*Metal
*Atomic number between 25-35

2p6
2s2
1s2

30

Increases from left to right of the periodic table

Demonstrated when the atoms of a substance rearrange to form new substances

*Nobel gas
*High conductivity
*Low density

3s1
2p6
2s2
1s2

57

I am in the 5th row and my mass is 106.42

The distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals

*Alkaline Earth metal
*Silver
*Magnetic
*Atomic number between 11-18
*2 atoms in the valence shell

3s2
2p6
2s2
1s2

82

I am in the 6th row and have a mass of 204.38

Any pure substance in the periodic table that cannot be broken down into simpler materials

*Red
*Metal
*Cubic crsytalline structure
*Reflect red and orange light and absorb other frequencies visible spectrums
*Conducts heat and electricity

1s2 2s2 2p6 3s2

115

I have an atomic weight of 1.00794. My valence shell has one electron. I am one of the most known elements in the world. I was discovered by henry Cavendish in 1775. My boiling point is -423.2 degrees F