It would be a non-metal and a halogen. Group 18 or the noble gases, all have 8 electrons in their outer shell. Therefore, the group before it would have seven electrons in the outer shell. This group is made up of all non-metals.
Every row of the Periodic Table is the beginning of another shell. and as you go left to right on any row, every square adds an electron. 1 electron in the outer shell would be something like Hydrogen or lithium, or sodium.
2 electrons in the outer most shell would be Beryllium, Magnesium, or Calcium for example. And these are all metals. The exception to this is Helium, which has 2 electrons in its outer shell, but the first shell is an exception on this rule.
That atom of element X must be in group 2.
Why? Because it has 2 outer electrons, that means this element is in group 2.
Simple~
It's a metal
it is a metal
No.
Metal
There are different electrons in the outer shell of each element.
Boron has 3 electrons in the outer shell and 2 electrons in the inner.
Both statements are true:Every element in group I has one electron in its outer shell andEvery element in group II has two electrons in its outer shell
It has a full outer shell of electrons.
Group 3 is part of the transition metal series. This means that the number of outer shell electrons the element has will depend on its oxidation state.
Bromine has 7 electrons in its outer shell.
A chloride anion contains eight outer shell electrons, one more than the seven outer shell electrons found in a chlorine atom.
There are different electrons in the outer shell of each element.
No. Argon has eight electrons in its outer shell and magnesium has two electrons in its outer shell.
Boron has 3 electrons in the outer shell and 2 electrons in the inner.
Copper is a non metal element. There are 29 electrons in a single atom.
The outer shell (N=4) of the copper element has 2 electrons.
Both statements are true:Every element in group I has one electron in its outer shell andEvery element in group II has two electrons in its outer shell
Same as a metal. It need to gain/lose electrons intill it has a full outer shell.
There are different electrons in the outer shell of each element.
It has a full outer shell of electrons.
Group 3 is part of the transition metal series. This means that the number of outer shell electrons the element has will depend on its oxidation state.