There are two shells in period 2 (that's why it's named like that)
The first can hold (max.) 2 electrons (1s2), the second holds 2+6 = 8 electrons (2s2 and 2p6) at maximum.
There are 9 periods on the Periodic Table, with the 8th and 9th periods on the extended periodic table (Actinides and Lanthanides).
Seven one is addad every row of elements
see what period it is in on the periodic table it is in period 6, so therefore there are 6 electron shells or energy levels
Four shells, as potassium is in fourth period
Yes. The elements in a period in a periodic table are categorised by how many outershells are surrounding the neutron and proton nucleus. They are alike in properties because the amount of electrons relates directly to how many outer shells the element has, for exampe Magnesium will have 3 outer shells because it has 12 electrons (2, 8, 2). The more shells an element has, the stronger the formation is and the higher the melting and boiling point will be. Therefore elements in the same period will have similar melting and boiling points.
7. It is in period 7, at the bottom of the periodic table.
2
if an element has 1 shell in its atom it is in period 1and so on... 2 shells=period 2 3 shells=period 3 4 shells=period 4 5 shells=period 5 6 shells=period 6 7 shells=period 7
all elements in a period all have the same amount of shells example: all elements in period 1 has only 1 shell all elements in period 2 has 2 shells so the period number is the same as the number of shells in that period
Boron has 2 shells altogether. 2 electrons on the first one and the remaining three on the second. Altogether boron (B) has 5 electrons.
Phosphorus in is 3rd period. So it has 3 electron shells.
see what period it is in on the periodic table it is in period 6, so therefore there are 6 electron shells or energy levels
it is in group, 4 and in period 2 group means how many electrons in outer shell, and period means how many electron shells it has:)
Oxygen is on period 2 whereas sulfur is on period 3. Therefore, sulfur has more electron shells than oxygen.
The number of electron shells depends on the noble gas. The number of shells will be equal to the period in which the noble gas is present.
Four shells, as potassium is in fourth period
The calcium atom has 2 outer shell electrons. It's configuration is: [Ar] 4s2 it also has 2 inner shell electrons
Yes. The elements in a period in a periodic table are categorised by how many outershells are surrounding the neutron and proton nucleus. They are alike in properties because the amount of electrons relates directly to how many outer shells the element has, for exampe Magnesium will have 3 outer shells because it has 12 electrons (2, 8, 2). The more shells an element has, the stronger the formation is and the higher the melting and boiling point will be. Therefore elements in the same period will have similar melting and boiling points.
A Sodium atom has three shells. For future reference, this can be discovered later by looking at which period an element falls in. For example, all group 1 elements have 1 shell, all group 2 elements have two shells, and so on.