Why does reactivity decrease as you go down the periodic table?

As we go down the group, the atom gets bigger. The bigger the atom, the further away the last electron. Therefore, the attraction between the nucleus and the last electron gets weaker.

What happens the further you go down the periodic table?

As you move down a group in the periodic table, the covalent radius increases. Atoms increase in size. This is because of the screening effect of the filled inner electron levels. These electrons screen or shield the outer electrons from the nuclear charge.

What happens to the elements reactivity as you go further down the periodic table?

Chemical reactivity of the elements Period – reactivity decreases as you go from left to right across a period. The farther to the left and down the periodic chart you go, the easier it is for electrons to be given or taken away, resulting in higher reactivity.

Why does the atomic radius increase as you move down the periodic table?

Down a group, the number of energy levels (n) increases, so there is a greater distance between the nucleus and the outermost orbital. This results in a larger atomic radius.

Why does reactivity decrease?

The reactivity of Group 7 elements decreases down the group. Non-metal atoms gain electrons when they react with metals. Therefore the ability of the atom to attract electron to fill the outermost shell reduces, which means the reactiveness of the atom reduces.

Why does reactivity decrease as you go from left to right?

And you go from left to right on the periodic table elements have more electrons in their valence shells they have to get rid off which requires an element to have high energies which results into lower Chemical Reactivity. For Non-Metals, the farther right-up in the table you go, the higher the electronegativity.

Do elements get more reactive as you go across the periodic table?

Period – reactivity increases as you go from the left to the right. Group – reactivity decreases as you go down the group.

What happens to the reactivity as you go down Group 7?

Reactivity decreases down the group. This is because group 7 elements react by gaining an electron. As you move down the group, the amount of electron shielding increases, meaning that the electron is less attracted to the nucleus.

What happens to the mass of elements are you go to the right of the periodic table?

As you go from left to right in the Periodic Table, you are adding more protons and neutrons to the nuclei. The atoms in the rows further down have even more protons and nucleons. Therefore, atomic mass increases from left to right and from top to bottom of the Periodic Table.

What happens to the reactivity of Group 7 elements as you go down the group?

What does the atomic radius decrease as you go across a period?

Atomic radius decreases across a period because valence electrons are being added to the same energy level at the same time the nucleus is increasing in protons. The increase in nuclear charge attracts the electrons more strongly, pulling them closer to the nucleus.

How does the atomic radius change as you go from the top to the bottom of a chemical family?

Group Trend The atomic radius of atoms generally increases from top to bottom within a group. As the atomic number increases down a group, there is again an increase in the positive nuclear charge. However, there is also an increase in the number of occupied principle energy levels.