one tuesday morning, you felt the room shaking while inside the class. the things inside the classroom move. the school bell rings. students are shouting. what will you do?

seek shelter under a desk

Explanation:

you may not know whats going on and safety is key. as a teacher they should help calm children down

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72