Chemistry, asked by dadmom0215, 4 months ago

Two elements X and Y have atomic numbers 6 and 17 respectively. The

sum of their period numbers (X+Y) is

Answers

Answered by singhharkirat747

0

Answer:

Did not understand the question

Answered by musicalplanetonfire

0

all the best copying in exam, i only search for doubts,( remember this conversation never happened)

what is ur name, i think I know u

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