Question

plz answer these questions. These r very important for me

Answer 1

1. (a) in X no. of electrons =no. of protons=atomic no.=16 and
atomic mass=no. of electron+no. of neutron then no. of neutron=atomicass-no. of electron
=38-16=22
also b and c same down no. shows atomic no. and up no. shows atomic mass
2. the element whose atomic no is 25 is mn (magnese) mass will be 70&60 respectively
3. k=2,8,8,1
Ar=2,8,8
p=2,8,5
Li=2,1
B=2,3
Al=2,8,3

Answer 2

$\boxed{\bf{\colorbox{red}{1. (a) in X no. of electrons =no. of protons=atomic no.=16 and</p><p> atomic mass=no. of electron+no. of neutron then no. of neutron=atomicass-no. of electron</p><p>=38-16=22</p><p>also b and c same down no. shows atomic no. and up no. shows atomic mass</p><p>2. the element whose atomic no is 25 is mn (magnese) mass will be 70&60 respectively</p><p>3. k=2,8,8,1</p><p> Ar=2,8,8</p><p> p=2,8,5</p><p> Li=2,1</p><p> B=2,3</p><p> Al=2,8,3}}}$