Question

How does the periodic table organize atoms of elements with the same number of valence electrons?

Answer 1

Answer:

2.in columns

Explanation:

• The elements of the periodic table is distribute as in 7 periods and 18 groups. The element is distribute on base on increasing atomic number.
• The period is called horizontal row and the group is called vertical column.  
• in periodic number of sphere around the nucleus remain the same, but as we move from left to right, the valence electrons continue to increase.
• so correct option is 2.in columns