#1: Which element has the same number of valence electrons as hydrogen (H)? A. helium (He) B. oxygen (O) C. nitrogen (N) D. lithium (Li) ***my answer: D. lithium (Li) is that right?

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#1: Which element has the same number of valence electrons as hydrogen (H)? A. helium (He) B. oxygen (O) C. nitrogen (N) D. lithium (Li) ***my answer: D. lithium (Li) is that right?

Chemistry
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Li is in group 1, so that sounds right
#2: What happens to the atomic size of the elements as one goes from the bottom to the top of a group? A. Atomic size stays the same as one moves from bottom to top in a group. B. Atomic size decreases as one moves from bottom to top in a group. C. Atomic size increases as one moves from bottom to top in a group. D. Atomic size changes randomly as one moves from bottom to top in a group. **my answer: C. is that right??
and okay yay :) for #1!!

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Other answers:

what about 2?
bottom = heavier elements top = lighter elements (think of it as like the heavy stuff floats to the bottom of the pool while the light/lighter stuff floats to the top) so as you go from bottom ---> top, the size decreases
so my answer is right for #2?? it is C?
and #3: Which of the following places the elements in the correct order of increasing first ionization energy? A. Be, Mg, Ca B. Cl, S, P C. P, S, Cl D. F, O, N ***I don't get this one :( please explain! :)
no, bottom ---> top means big ----> small
so which answer was that?
it's not C because it's not increasing
so my answer to #2 is this? B. Atomic size decreases as one moves from bottom to top in a group. ??
yeah
okay and what about #3? lemme repost it so its easier :P
#3: Which of the following places the elements in the correct order of increasing first ionization energy? A. Be, Mg, Ca B. Cl, S, P C. P, S, Cl D. F, O, N ***I don't get this one :( please explain! :)
do u get #3?
have a look at this site http://www.shodor.org/chemviz/ionization/students/background.html
idk still... i use the equation?
no look at the chart
of ionization energies
oaky so bottom to top, left to right?
yeah it looks it
okay, so my answer is C. P, S, Cl ??
it goes left to right in the periodic table.. :/ is that the answer?
looks perfect
yay! :) thanks!
yay! :) thanks!

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