PLEASE help me! An increase in principal quantum number explains which of
the following trends?

A. The ionization energy decreases from top to bottom within a family

B. The ionization energy increases from left to right across period

C. The electronegativity increases from left to right across a period

D. The atomic radius increases from left to right across a period

i believe it is c.) 1575 j.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

i don,t know so just answer mine