Chemistry, asked by dfcv766, 1 year ago

Atomic number , mass number and valency for any 20 elements

Answers

Answered by adiram00721
0
can get it in the NCERT class 9 text. if u don't have, u can borrow it from someone. please mark it as the brainliest answer.
Answered by aashutosh1393
1
see the pic .u can find 20 element there
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