Question

question 1
does every atom have an octet of electrons?
yes
no

Explanation:

The octet rule states that atoms tend to gain, lose, or share electrons to have eight electrons in their valence shell. However, there are exceptions. For example, hydrogen ($H$) only needs two electrons (duet) to fill its valence shell (since it has a $1s$ orbital which can hold a maximum of 2 electrons). Helium ($He$) already has 2 electrons in its valence shell and is stable. Also, some atoms in compounds like $BF_3$ (boron trifluoride) have less than an octet around the boron atom (boron has 6 electrons in its valence shell in $BF_3$).

Answer:

B. No