Which element has largest and smallest atom in period 2?

Which element has largest and smallest atom in period 2?

As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

Which atom is the smallest size?

Helium
Explanation: Helium has the smallest atomic radius. This is due to trends in the periodic table, and the effective nuclear charge that holds the valence electrons close to the nucleus. Atomic radius decreases as you move across a period from left to right and decreases as you move up a group from bottom to top.

What is the smallest atom in period 3?

Argon is the smallest atom of the Period 3 because it has 18 number of electrons that is also equal to 18 number of protons due to which the force of attraction between electrons and protons increases and their size thus decreases.

Which is the biggest atom in period 2?

How do you find the smallest atom?

Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

What is the smallest atom in period 4?

helium
Thus, helium is the smallest element, and francium is the largest.

What element in the second period has the smallest atomic radius?

F fluorine
Explanation: It’s F fluorine. It has the smallest diameter in the second period. In the same period diameter of atom depends on how many electrons are in outer layer.

Which is the smallest element in period 2?

Explanation: It’s F fluorine. It has the smallest diameter in the second period.

What are the two smallest atoms?

The smallest atom? If by “biggest” and “smallest”, you mean mass (which is a measure of how much matter is there), then the smallest is the hydrogen atom with one proton and one electron.

Which is the smallest particle in an atom?

The electron was the first subatomic particle to be identified, discovered by Sir John Joseph Thomson in 1897. Electrons orbit around an atom’s nucleus in what is referred to as an electron cloud. The particle’s mass is tiny, approximately 1,840 times smaller than protons and neutrons.

Which is smaller an electron cloud or an atom?

Electrons orbit around an atom’s nucleus in what is referred to as an electron cloud. The particle’s mass is tiny, approximately 1,840 times smaller than protons and neutrons. The subatomic particle has a negative charge.

Which is smaller an electron or a proton?

He called this center the atom’s nucleus and named the positively charged particle a proton. The “average” diameter of a proton was measured to be three times smaller than that of an electron, but in terms of mass, it’s 1837 times heavier!

Which is the first subatomic particle to be discovered?

The electron was the first subatomic particle to be identified, discovered by Sir John Joseph Thomson in 1897. Electrons orbit around an atom’s nucleus in what is referred to as an electron cloud.