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pentagon [3]
2 years ago
6

How does calcium form an ion?

Biology
2 answers:
Ludmilka [50]2 years ago
8 0

Answer: Some atoms gain or lose more than 1 electron. Calcium loses 2 electrons when it becomes an ion. When ions come together to form an ionic bond, they always join in numbers that exactly cancel out the positive and negative charge.

Explanation:

That's it.

dmitriy555 [2]2 years ago
7 0

Answer: By losing its two outermost electron

Explanation:

Calcium is a element that belongs to group 2 in the periodic table. It has an atomic number of 20, and an electronic configuration of 2, 8, 8, 2.

Hence, to form an octet structure, it gives off its two electrons as shown below:

Ca <----> Ca2+ + 2e-

Thus, by losing its two outermost electrons, a positively charged calcium ion (Ca2+) is formed

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grigory [225]

Answer:

Right now, I am in college for climatology, but before I decided on climatology, I was taking classes in Meteorology, the study of weather. So, I will answer your question. All meteorologists like to be right, but since the weather is so spontaneous, it is really hard to be right. Meteorologists use percentages because it helps them be professional. Also, because, different parts of the region where they are may or may not get the rain. I don't know where you are from, but I will use my hometown. In McAlester, Oklahoma, there may be a 70% chance of rain, but in another part of the region at Tulsa, Oklahoma ( which is 91 miles north of McAlester) there may be a 40% chance of rain. The difference in the percentages can vary from how stable the environment is, altitude, location, and terrain. That is two of the reasons why Meteorologists use percentages to predict weather.

Explanation:

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Answer:

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2 years ago
Groundwater deposits are under threat of depletion and pollution. What are three appropriate solutions for preserving groundwate
Ugo [173]
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MARKING BRAINLIEST !!!
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Explanation:

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Hope this helps!

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Answer:

Hi

Explanation:

Ok

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