Question

please help me!!!
I need your help ARMY!!!!​

Answer 1

Isotopes means they have same atomic number and different mass number so we can see 3 ,4 having same atomic number (8) they're isotopes and one thing I'm girl too I'm not unnie sorry I won't call you buddy that's ok borahae!!

Answer 2

$heyy \: sis \: do \: u \: remember \: me$

$im \: muskan \: this \: is \: my \: new \: account \:$

$would \: u \: like \: to \: be \: my \: friend \: once \: agan \: xd$

$salaghae$