The elements that belong to the third period of periodic table are

rasheedoyeladun

9 years ago

D is correct ...period are d elements found horizontally e.g Na mg Al si p S Cl Ar...those ar d period 3

regony600

9 years ago

Just change the N2 to Na and 'd' would be the answer

Jakeaustin007

10 years ago

the correct answer is D.here are the elements in the third period,Na,Mg,Al,Si,P,S,Cl and Ar.so check out yourself thanks.

Elbrain

9 years ago

Yea, Very correct...

King33Victor

2 months ago

6 years later

aanuema

7 years ago

Pls Myschool the option D is wrongly composed, it should be Na, Mg, S, Ar, not N2 Mg S Ar

aliyuibrahim2029@yahoo.com

10 years ago

C and D are correct

jaystar45a

10 years ago

D correct ans is d

Gidotti

9 years ago

yeah. option D is de ryt ansa

Benjiii

10 years ago

Wrong the answer is B