A) Increases
B) Decreases
C) Stays the same
D) Changes randomly
2007-05-24 09:31:36 · 4 answers · asked by ? 1 in Science & Mathematics ➔ Chemistry
B is the correct answer.
As you go left to right across a period you are not adding any more levels of electrons, but you are adding more protons to the nucleus and more electrons in the same outer level. The larger positive charge of the nucleus attracts the electrons more and pulls them closer. This causes the diameter of the atoms to decrease as you move across a period.
2007-05-24 09:35:02 · answer #1 · answered by physandchemteach 7 · 1⤊ 2⤋
In going from left to right in any given row of the periodic table, the size of the atoms generally (B) decreases, because as more and more protons are in the nucleus, the electrons get pulled closer to the nucleus, decreasing the size of the atom.
2007-05-24 09:36:20 · answer #2 · answered by Anonymous · 0⤊ 1⤋
b
atomic radius decreases as you go from left to right across a period.
Stronger attractive forces in atoms (as you go from left to right) between the opposite charges in the nucleus and electron cloud cause the atom to be 'sucked' together a little tighter
2007-05-24 10:16:43 · answer #3 · answered by Anonymous · 0⤊ 0⤋
it enhance moving maximum stunning to backside considering you're including in extra skill point. and it enhance from left to real considering you're including extra proton which in turn pull the electron closer mutually. nicely you organize it considering you already recognize the respond. ^_^ F, S,P, As
2016-12-11 19:30:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋