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What the vertical columns groups tell you about an element?

The periodic table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. As you keep counting the columns, you’ll know how many electrons are in the outer shell.

How do you identify the group number and period of an element?

If you are given with the atomic number of an element you can find it’s period number and group number. The period number is related to the number of electron occupied shells in the element and the period number is linked to its valence electrons.

How do you find the group number of F block elements?

If the element is in the d block, then the number of the group can be determined by the formula: [number of electrons in (n-1) d subshell] + (number of electrons in (n) s subshell). 4. If the element is in the f block, then the number of the group is always 3.

What is the group number of Na?

Fact box

Group 1 97.794°C, 208.029°F, 370.944 K
Block s 0.97
Atomic number 11 22.990
State at 20°C Solid 23Na
Electron configuration [Ne] 3s1 7440-23-5

What does each period represent in the periodic table?

Each row represents one period; the period number of an element indicates how many of its energy levels house electrons. Sodium, for instance, sits in the third period, which means a sodium atom typically has electrons in the first three energy levels.

What element is in Group 2 and Period 4?


What are the 5 elements on the periodic table?

The elements of the periodic table sorted by atomic number

Atomic number Name chemical element Symbol
4 Beryllium Be
5 Boron B
6 Carbon C
7 Nitrogen N

How many elements are present in 7th period?

32 elements