Which element in Period 2 has the greatest atomic radius?

Which element in Period 2 has the largest atomic radius?

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 elements have the highest atomic radius?

Explanation: 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.

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.

Which element in Period 2 has the most mass?

The element neon, in period 2, has the most mass.

What elements have the smallest atomic radius?

Explanation: Helium has the smallest atomic radius.

How do you find atomic radius?

The radius of an atom can only be found by measuring the distance between the nuclei of two touching atoms, and then halving that distance. As you can see from the diagrams, the same atom could be found to have a different radius depending on what was around it. The left hand diagram shows bonded atoms.

What is the atomic radius of B?

180 pm

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.

What is magnesium’s atomic radius?

173 pm

What is the trend of atomic radius?

Periodic Trend

The atomic radius of atoms generally decreases from left to right across a period. … Within a period, protons are added to the nucleus as electrons are being added to the same principal energy level. These electrons are gradually pulled closer to the nucleus because of its increased positive charge.

What is the trend in EA across a period?

There are general trends in electron affinity across and down the periodic table of elements. Electron affinity generally increases across a period in the periodic table and sometimes decreases down a group.

Does atomic radius increase with atomic number?

1 Answer. The atomic number is the amount of protons present in the atom. Because of that, we can say that the atomic number represents the positive charge of the atom. As the positive charge of the atom increases the atomic radius decreases because the positive charge will bring electrons closer to the nucleus.

What is Period 2 in the periodic table?

The second period contains the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon. In a quantum mechanical description of atomic structure, this period corresponds to the filling of the second (n = 2) shell, more specifically its 2s and 2p subshells.

What number increases from 3/10 to Period 2?

In the periodic table, atomic number increases from 3 to 10 in period 2. Explanation: Atomic numnber is the total number of protons present in an atom. And, when we move across a period then there occurs an increase in atomic number of the elements.

What is the period for nitrogen?