Does higher atomic number mean more reactive?

Radius and Reactivity As atomic number increases, so does an atom’s radius. The outermost electron is held less tightly and escapes more readily. Therefore, the alkali metal with the higher number is more chemically reactive.

Which atom is more reactive and why?

Explanation: Fluorine and oxygen are the most reactive elements of the Periodic Table, i.e. this is another way of saying that they are the most reactive of ALL ELEMENTS.

How do you know which atoms are more reactive?

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Alkali metals are highly reactive because they readily lose the single electron in their outermost shell.

Does the atomic number represent reactivity?

The atomic number represents the number of protons that exist in the nucleus. The number of protons can determine how many electrons can orbit around the atom; this, in turn, affects the reactivity and chemistry of the atom.

Which atomic number is least reactive?

Noble gases
Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. Noble gases are the least reactive of all elements. That’s because they have eight valence electrons, which fill their outer energy level.

Does more electron shells mean more reactive?

The reactivity of group 1 metals increases as we go down the periodic table because as we go down the group the electrons are further away from the nulceus as the number of shells increase and therefore the attraction the electron feels from the nucleus decreases due to the nucleus being more shielded by the increasing …

What atom is the most reactive?

fluorine
The most reactive element is fluorine, the first element in the halogen group. The most reactive metal is francium, the last alkali metal (and most expensive element). However, francium is an unstable radioactive element, only found in trace amounts.

Which elements are more reactive?

The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water, for example.

Why are some elements more reactive?

An element’s reactivity depends on how its electrons are arranged. Conversely, if the outer shell is occupied by just one solitary electron (ie sodium) this electron can readily be shared with another atom, making it highly reactive.

Does more protons mean more reactive?

The smaller the atomic radius, the more influence the nucleus has on reactivity. Since the nucleus of an atom contains positively charged protons, it also attracts electrons. Therefore, the smaller the atomic radius, the more reactive the halogen atom, making fluorine the most reactive element in Group 17.