(Solved) What is the atomic mass of calcium and how many electrons and protons does it have?

firebolt

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11 years ago

What is the atomic mass of calcium and how many electrons and protons does it have?

I am doing a research project on calcuim and I can't seem to find the atomic mass or the electron and proton number.
Also, any interesting facts you have would also help a lot.
Thanks.

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buggmoma10

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11 years ago

Calcium has an atomic mass of 40 and a proton number of 20

So there are 20 protons/electrons and 20 neutrons

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tonesmith

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11 years ago

ATM: approx.40

PROTON: 20

ELECTRON:20

NEUTRONS: 20

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Bugmenot

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11 years ago

If you took the time to ask the question, then you shouldn't be lazy enough to go on google and type "atomic mass of calcium"

Mass = 40.078
Electrons = 20
Protons = 20

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Answer accepted by topic starter

Tonbon1221

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11 years ago Edited: 11 years ago, bio_man

This verified answer contains over 180 words.

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Fipas

wrote...

11 years ago

Ca
Atomic Number - 20
Atomic Mass - 40.078 amu

The electron and proton amount of any atom is the same as the atomic number so:

Electron - 20
Proton - 20

Calcium was known as early as the first century when the Ancient Romans prepared lime as calcium oxide. It was not isolated until 1808 in England when Sir Humphry Davy electrolyzed a mixture of lime and mercuric oxide. Davy was trying to isolate calcium; when he heard that Swedish chemist Jöns Jakob Berzelius and Pontin prepared calcium amalgam by electrolyzing lime in mercury, he tried it himself. He worked with electrolysis throughout his life and also discovered/isolated sodium, potassium, magnesium, boron and barium.

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