How to write -0.84 as a decimal fraction or mixed number in simplest form

-0.84 has two decimals, therefore, to put it in a fraction form, we'll use two zeros at the bottom and lose the dot above, notice, two decimals, then two zeros,

7.1 is in between -8 and -7 because -7. 1 is equal to -7. 10 and that number is 10 numbers away from the number 7. ur welcome!

Element a has no reactivity because it has eight valence electrons and cannot gain anymore electron and it wouldn't lose any either