Question

13 multiple choice 1 point
group 2 elements are known as the...
halogens.
boron family.
alkaline earth metals.
alkali metals.
clear my selection
14 multiple choice 1 point
an atom’s ability to attract electrons to itself in a molecular bond is the definition of which term?
isoelectronic series
electronegativity
ion
electron
clear my selection

Explanation:

Question 13

Halogens are Group 17, boron family is Group 13, alkali metals are Group 1. Group 2 elements are alkaline earth metals.

Isoelectronic series are atoms/ions with same electron count, ion is charged atom, electron is subatomic particle. Electronegativity is an atom’s electron - attracting ability in a bond.

Answer:

C. alkaline earth metals.

Question 14