Each element in the Periodic Table has a number of protons equal to its atomic number. Uncharged atoms have the same number of electrons. Element number 1 (hydrogen) has 1 proton and 1 electron in a single atom.
There are 118 elements on the periodic table (numbered 1 through 118), with some of them being artificially made (not naturally occurring), or a result of radioactive decay, and not stable.
3 electrons. This can be told from the periodic table. These electrons are in the 2p orbital.
7. It is in period 7, at the bottom of the periodic table.
they have 2
The number of Valence Electrons of Xenon is 8 because it is in the eighth group on the periodic table
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
Calcium has 20 electrons
Xenon has 54 electrons.
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
Chlorine has 17 electrons. It is displayed as atomic number in periodic table.
Two valence electrons
Just so you know, the periodic table does not give any indication of how many electrons an atom has but 95% of sulfur atoms are neutral and so contain 16 electrons.
there are 6 valence electrons in each element in group 16
As is present in group-15. It has 5 valence electrons.
3 electrons. This can be told from the periodic table. These electrons are in the 2p orbital.
By the [use and] study of the Periodic Table.
For example the elements from the group 1 of the periodic table.
how many electrons it has---how many valence electrons and how many levels of electrons. its Atomic Mass its atomic number