PLS HELP URGENT Moving from left to right across the periodic table, the shielding effect remains constant
within a period. Please explain why the shielding effect is constant. Limit your response
to one sentence. Use your own words to answer.

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

the maximum mass of nh3 is nh3 in grams

d) a person who learns about the world by observing it.

explanation:

scientist are people who discover why and how things are done and made in the world.