Calcium, Silver, Neptunium By: Hannah Wills

Calcium, Silver, Neptunium

• By: Hannah Wills

Calcium

• atomic number- 20

• atomic mass- 40.078

• Protons-20

• Neutrons-20

• Electrons-20

Calcium Common Naturally Occurring Isotopes

• 40- 39.95259

• 41- 95227

• 42- 49.95861

• 43- 42.95876

• 45- 44.95618

• 46- 45.95389

• 47- 46.95454

• 48- 47.95253

To find the atomic mass…

• 40- (39.962590983) (.6941) +

• 41- (40.962278062) (0) +

• 42- (41.958618014) (0.6470+

• 43- (44.9587618656) (0.135) +

• 44- (43.955481754) (2.086) +

• 45- (44.956186566) (0) +

• 46- (45.953692587) (0.004) +

• 47- (46.9454008) (0) +

• 48- (47.952534177) (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- 107.8682

• Protons-20

• Neutrons-61

• Electrons-20

Silver Common Naturally Occurring Isotopes

• 105- 104.9065

• 106- 105.9066

• 107- 106.9060

• 108- 107.9059

• 109- 108.9047

• 111- 110.9052

To find the atomic mass…

• 105- (104.906528661) (0) +

• 106- (105.906668921) (0) +

• 107- (106.90509682) (.51839) +

• 108- (107.905955556) (0) +

• 111- (110.905291157) (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- 237.0481

• Protons-93

• Neutrons-144

• Electrons-93

Neptunium Common Naturally Occurring Isotopes

• 235- 235.0440

• 236- 236.0465

• 237- 237.0481

To find atomic mass…

• 40- (39.962590983) (.6941) +

• 41- (40.962278062) (0) +

• 42- (41.958618014) (0.6470+

• 43- (44.9587618656) (0.135) +

• 44- (43.955481754) (2.086) +

• 45- (44.956186566) (0) +

• 46- (45.953692587) (0.004) +

• 47- (46.9454008) (0) +

• 48- (47.952534177) (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.

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