Which of these statements about neutrons is true?

a.
neutrons travel around the nucleus of an atom.

b.
a neutron has no charge.

c.
neutrons have less mass than electrons.

d.
the number of neutrons in an atom always equals the number of electrons.

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Based on its chemical properties, identify the position of each chemical family on the periodic table.