D. 2- youre adding two negative charges to a neutral element
100% find the gfm of both sides then divide
Answer
Accordingly the order of electronegativity of the given elements would be: Fluorine > Chlorine > Bromine > Iodine. ( Fluorine has the highest electronegativity.)
Aluminum is an element. If there's nothing else in the foil
besides aluminum, then the foil is entirely an element.
1. Cleaning oil spills
2. Segregation of non-biodegradable to biodegaradable wastes.
3.Separating mixtures in mining gold copper and other minerals.
4. Separating sand from rocks in construction.
5. Have a drinking water
