Selinium is a non metal element. There are 34 electrons in a single atom.
Se has to gain two electrons
Usually three will be lost.
Only three electrons.
Chlorine is a metal element. There are 17 electrons in a single atom.
Electrons are both gained and lost. Electrons are both gained and lost.
Se will gain electrons
34 electrons
Se has to gain two electrons
An atom of selenium has 34 electrons.
-3 electrons are gained,i.e,3 electrons are lost by Al and 3 electrons are gained by the other atom nearby.
There is zero NET loss or gain of electrons
A chemical change in which electrons are gained is a reduction.
Nitrogen must gain three electrons.
Usually three will be lost.
You can determine how many electrons are gained or lost by looking at the atom's charge. If the atom gains electrons, it becomes negatively charged; if it loses electrons, it becomes positively charged. The difference between the atom's original and final charge tells you how many electrons were gained or lost.
Only three electrons.
Chlorine is a metal element. There are 17 electrons in a single atom.