Choose the correct answers. @dan815

Question

anonymous · Answer

what can be deduced from the symbol |dw:1421983592083:dw|

anonymous · Answer

i Atom X has 18 neutrons.
ii Atom X has valence electrons.
iii Atom X has 15 protons and 31 neutrons.
iv Element X is placed in Group 17 and Period 3 in the Periodic Table.

anonymous · Answer

@dan815

anonymous · Answer

i Atom X has 18 neutrons.

anonymous · Answer

i think....

dan815 · Answer

it dddoesnt say how many electronds

dan815 · Answer

Medals 0

i Atom X has 18 neutrons. ii Atom X has valence electrons.

anonymous · Answer

ii Atom X has 7 valence electrons*

anonymous · Answer

i think it's $$i~Atom~X~has~18~neutrons$$

anonymous · Answer

do u hv any ideas @dan815 ?

dan815 · Answer

ii is right tooo

mimi_x3 · Answer

I read hv as hiv -.-

anonymous · Answer

can u tell me how u get 7 valence electrons @dan815

mimi_x3 · Answer

Ok i ii and iv are all correct

mimi_x3 · Answer

Ok so the atom X is chlorine right?
Chlorine is has an atom number of 17 and a mass of 35 and 18 neutrons, It has valence electrons and  its in group 17 and period 3

anonymous · Answer

ii Atom X has 7 valence electrons      *

mimi_x3 · Answer

Well that is true too Its in group #17 which every element in group 17 has 7 valence electrons

mimi_x3 · Answer

All participants please Medal+Fan me :D

anonymous · Answer

i'm not good at periodic table.
can u show me how u get 7 valence electrons @Mimi_x3 ?

mimi_x3 · Answer

@dan815 Pls medal

anonymous · Answer

thnx @Mimi_x3 @dan815