F is a group 17 element which are referred to as halogens. hence requires one electrons to obtain octet electron configuration.Therefore F has -1 charge. Xe is a group 18 element which are referred to as noble gas which has octet electron configuration but due to the two F- Xe has +2 formal charges.

5 0

4 years ago

sort these into metals and non-metals. Apperence, density, strength, malleable, brittle, conductor, sonorous, ductile.

77julia77 [94]

Answer:

Metals and non-metals are substances that can be differentiated on the basis of various physical and chemical properties. Metals are the elements that are generally hard as strong metallic bond exists between the atoms. As against non-metals are the elements which are usually soft.

7 0

3 years ago

A sample of seaweed contains 1 liter of water and has 50 grams of salt dissolved in its cells. The seaweed is placed in a soluti

masha68 [24]

seaweed having 50 g salt in 1 L water. The bucket contains 150 g of salt in 2 L of water

amount of water present in bucket is twice to amount of water in weed

$V¬_water bucket=2×V_water weed$