2.1.2: Compounds, formulae and equations Flashcards

1
Q

Which are the 4 elements that don’t tend to form ions and why?

A

The elements are beryllium, boron, carbon and silicon

Requires a lot of energy to transfer outer shell electrons

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2
Q

What are molecular ions?

A

Covalently bonded atoms that lose or gain electrons

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3
Q

What is the charge of an ammonium ion?

A

+1 → NH4+

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4
Q

What is the charge of a hydroxide ion?

A

-1 → OH-

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5
Q

What is the charge of a nitrate ion?

A

-1 → NO3-

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6
Q

What is the charge of a sulphate ion?

A

-2 → SO42-

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