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Marina CMI [18]
3 years ago
7

How is a cation formed and which elements tend to become these in reactions?

Chemistry
1 answer:
xenn [34]3 years ago
7 0

Answer:

The charge from the positively charged metals goes to anions is how cations form.

Explanation:

Cations- Positive charged metals

Anions- Negative charged metals

The charge from the positively charged metals goes to anions is how cations form.

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A metal oxide with the formula mo contains 15.44% oxygen. in the box below, type the symbol for the element represented by m.
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<u>Answer:</u> The element represented by M is Strontium.

<u>Explanation:</u>

Let us consider the molar mass of metal be 'x'.

The molar mass of MO will be = Molar mass of oxygen + Molar mass of metal = (16 + x)g/mol

It is given in the question that 15.44% of oxygen is present in metal oxide. So, the equation becomes:

\frac{15.44}{100}\times (x+16)=16g/mol\\\\(x+16)=\frac{16g/mol\times 100}{15.44}\\\\x=(103.626-16)g/mol\\\\x=87.62g/mol

The metal atom having molar mass as 87.62/mol is Strontium.

Hence, the element represented by M is Strontium.

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Electrons are happy when they have a full outer shell which usually needs to be 8 electrons. However, some of the smaller elements like helium are happy because they can hold a max of 2 electrons and helium has 2 electrons since it has 2 protons in its core as well as 2 electrons in its energy levels.

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