What element is in group 2 and period 3 of the periodic table

The element is Magnesium.

Explanation:

On the periodic table, elements are arranged based on atomic number and chemical similarity.

If we look at the periodic table, we will notice that there are eighteen groups and seven periods. And, we can also see that the groups are vertical while the periods are horizontal.

Therefore, if we count two across and three down, we will see the element Mg - atomic number 12. Mg is the element symbol, not the name, so we can look and see that the name of the element is Magnesium.

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.