Which element has a higher first ionization energy than chlorine (ci)?
the periodic table
a. argon (ar)
b. iodine (1)
c. phosphorus (p)
d. lithium (li)

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5

What is the atomic number of an atom that has 6 protons