-- 5 In a calorimeter holding 455 grams of
water the temperature of the water
increases from 27.0°C to 44.0°C.
How many kilojoules of heat were
added to the water?
(specific heat of water = 4.18 J)
q

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

im pretty sure its b