1.What is the trend in atomic radii as you move from left-to-right across a period? (1 Point)
generally increase
varies randomly
remains the same
generally decreases
2.The trend in the atomic radii as you move down the group 1 elements is partially due to
(1 Point)
increased number of electrons in outer energy level.
shielding by inner electrons.
decreased distance of outer electrons.
increased nuclear charge.
3.n which of the following pair is the second particle listed larger than the first?
(1 Point)
Pb, C
K, Ga
Br, Br−
Li, Li+
4.How many electrons does an atom generally need in its outer level to be the most stable?
(1 Point)
16
12
8
4
5.As you move from left to right on the periodic table, what generally happens to the ionization energy?Immersive Reader
(1 Point)
it decreases
it remains constant
it cannot be determined
it increases