An element X has atomic number 9 in which period and group, it can be placed in the modern
periodic table?
Answers
Answered by
2
Answer:
Fluorine is the element having 9 electrons which is nothing but atomic number
Mark this is as brainliest
Answered by
19
Atomic number- 9
Element- Fluorine
Period- 2nd
So, the atom is placed in the 2nd period, since it lacks d- orbital
Please mark me brainliest
Similar questions