Halogens are elements that can be found in group 7 of the periodic table. They have 7 electrons in their outer shell and thus can form only a single covalent bond with other elements. Examples of halogens include chlorine, bromine and fluorine. A carbon compound that is covalently bonded with chlorine or bromine is called a halocarbon.
Answer:
"gene" is the segment of DNA containg the inheritance information.
Answer:
they both have 4 sig figs:)
Explanation:
Because the sublevels 1s only has one shape ,and it only contains 2 elections...