3. chemical bonds are likely to form when
a an atom's nucleus has the same number of protons as it does
neutrons
b an atom's outer energy level doesn't have the maximum number of
electrons
c two atoms have the same number of electrons
dan atom's outer energy level is filled to capacity

B.an atom's outer energy level doesnt have maximum number of electrons

Explanation:

Because an atom always need to have a full octet so that it can stabilise...So an atom tends to...share...donate...or gain electrons...in which this is done by forming bondsso that it can attain a stable octet

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.