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How can I write the formula for potassium bromide?

Answer 1

The compounds potassium and bromide are represented by the formula KBr, which is written as one potassium ion (K+) and one bromide ion (Br-). The charges are +1 and -1, which balance and cancel each other out. Potassium is in Group 1 of the Periodic table, so it loses one electron to become K+, and the bromine atom is in Group 17 so it gains one electron to become Br-.

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Answer 2

Jeremiah Adams

KBr is potassium bromide's chemical formula.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.