an element Y contains 13 electrons and 14 neutrons . what is the atomic no. of Y ? what is the valency of Y ? identify the element as metal or non - metal ?
Answers
Answered by
3
Answer:
Explanation:
The atomic number represents the number of electrons in a neutral atom and hence, atomic number is 13.
The electronic configuration of the element is 2,8,3 and hence the valency is 3 as there are 3 valence electrons
It is a metal since it will lose 3 electrons to get to the E.C. of nearest noble gas,i.e., Neon
Answered by
0
Explanation:
Atomic number=No. of protons=No. of electrons in ground state(unchanged atom)
Atomic number=13=No. of protons
Atomic mass=no. of protons+no. of neutrons=13+14=27
For isotope no. of proton=13(same atomic number but different mass number are isotopes)
no. of electrons=13
no. of neutrons=14+2=16
MARK ME AS BRAINLIST AND FOLLOW ME
Similar questions