Calcium, Silver, Neptunium By: Hannah Wills

Calcium atomic number- 20 atomic mass Protons-20Neutrons-20Electrons-20

Calcium Common Naturally Occurring Isotopes

To find the atomic mass… 40- ( ) (.6941) ( ) (0) ( ) ( ( ) (0.135) ( ) (2.086) ( ) (0) ( ) (0.004) ( ) (0) ( ) (0.187)

Calcium Bohr Model

Full and Abbreviated Electron Configuration 1s2, 2s2, 2p6, 3s2, 3p6, 4s2 [Ar] 4s2

Information on Calcium Calcium is found in rocks, chalk, and seashells. It’s found in the bones, muscles, and nerves of animals and humans, as well as, many plants. Sir Humphrey Davy discovered Calcium in 1808.

Silver atomic number-47 atomic mass Protons-20Neutrons-61Electrons-20

Silver Common Naturally Occurring Isotopes

To find the atomic mass… 105- ( ) (0) ( ) (0) ( ) (.51839) ( ) (0) ( ) (0)

Silver Bohr Model

Full and Abbreviated Electron Configuration 1s2,2s2,2p6,3s2,3p6,4s2,3d10, 4p6, 5s1, 4d10. [Kr] 5s1, 4d10.

Information about Silver Silver can be found in igneous and sedimentary ore like galena. No one actually knows who discovered the chemical element Silver, but there is evidence it was known to the ancients.

Neptunium atomic number-93 atomic mass Protons-93Neutrons-144Electrons-93

Neptunium Common Naturally Occurring Isotopes

To find atomic mass… 40- ( ) (.6941) ( ) (0) ( ) ( ( ) (0.135) ( ) (2.086) ( ) (0) ( ) (0.004) ( ) (0) ( ) (0.187)

Neptunium Bohr Model

Full and abbreviated electron configuration for Neptunium 1s2, 2s2,2p6,3s2, 3p6, 4s2,3d10, 4p6,5s2,4d10, 5p6, 6s2, 4f14,5d10 6p6, 7s2, 5f4. [Rn] 5f4, 6d2, 7s2.

Information about Neptunium Neptunium is an artificial chemical element. Neptunium was first produced from Edwin M. McMillian and Philip H. Abelson.