What element in Period 2 has the largest atomic radius?

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

The element in the second period that has the largest atomic radius is the Lithium (Li).

Which element in Period 2 has the largest atomic mass?

1 Answer. The element in Period 2 with most mass is clearly the element with the highest atomic number, Z , and that is Ne , Z=10 , 21.08⋅g⋅mol−1 .

Which elements have the largest atomic radius?

Francium has the largest, Helium has the lowest. Atomic radius increases as you go to the left and downward due to the attraction of electrons and the nucleus in an atom.

Which element in Period 2 has the smallest atomic radius?

Fluorine is the element with smallest atomic radii.

Which period has the smallest atomic radius?

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 element has the smallest atomic radius?

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 lightest element on earth?

Hydrogen is the lightest element. Dihydrogen, H2, is a colorless, odorless, tasteless gas.

What do you call the element from atomic number 57 71?

What do you call the element series from atomic number 57-71? Silicon.

What element has an atomic number of 11?

The Elements, sorted by Atomic Number

Is Br or Br bigger?

Br – will have the largest atomic size because Br- has one extra electron in its valence shell which due to its unbalanced negative charge will be repelled and hence the atomic radius of Br- will increase.

Which ion has the largest atomic radius?

1 Answer. Ernest Z. K+ has the largest radius.

Which has largest radius?

Thus O2− has a minimum z-effective thus largest radius.

How do you find atomic radius?

Atomic radius is determined as the distance between the nuclei of two identical atoms bonded together. The atomic radius of atoms generally decreases from left to right across a period. The atomic radius of atoms generally increases from top to bottom within a group.

What is the trend in atomic radius across Period 2?

Atomic radius is the distance from the atom’s nucleus to the outer edge of the electron cloud. In general, atomic radius decreases across a period and increases down a group. Across a period, effective nuclear charge increases as electron shielding remains constant.

What factors influence atomic radius?

These factors are: The number of protons in the nucleus (called the nuclear charge). The number of energy levels holding electrons (and the number of electrons in the outer energy level). The number of electrons held between the nucleus and its outermost electrons (called the shielding effect).