Which element in group 1 has the smallest atomic radius?

Which group has the smallest atomic radius?

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.

Which element has the largest atomic radius in Group 1?

Trends in Atomic Radius of Group 1 Elements

Which one of the following has the smallest radius?

Hence, Cl has the smallest radius.

Which element has the smallest atomic radius quizlet?

Therefore, rubidium has the largest atomic radius whereas helium has the smallest.

Which family of elements has the largest 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.

Which has 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.

What are the Group 1 elements called?

Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

Which metal has the largest radius?

Francium has the largest atomic radius. As can be seen in the image below, the atomic radius increases from top to bottom in a group, and then decreases from left to right across a period.

Why does Group 1 have the lowest ionization energy?

Going down the group, the first ionisation energy decreases. There is more shielding between the nucleus and the outer electrons and the distance between the nucleus and the outer electron increases and therefore the force of attraction between the nucleus and outer most electrons is reduced.

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.

Which element has the largest atomic number?

Oganesson has the highest atomic number and highest atomic mass of all known elements. The radioactive oganesson atom is very unstable, and since 2005, only five (possibly six) atoms of the isotope oganesson-294 have been detected.

Which of the following has the minimum atomic radius?

Fluorine has a minimum atomic radius. The atomic radius of Fluorine is 42 pm.

Which element in Group 2 has the largest atomic radius?

Trends in Atomic Radius of Group 2 Elements

Which element has the largest atomic radius Asnpsb?

• Answer : ‘Sb’ is the element which has the greatest atomic radius.
• Explanation :
• The general trend of the atomic radium of the element is that,
• Hence, ‘Sb’ is the element which has the greatest atomic radius.

8 мар. 2018 г.

Which is larger P or P3?

Ar: P has a +15 nucleus, Ar’s is +18. Thus P3- will have a smaller Zeff (=+15-10 = +5 vs. +18 – 10 = +8 for Ar) and a larger radius.