What element has the second smallest atomic radius?
| Helium 31 pm 161 pm | Neon 38 pm 165 pm | Fluorine 42 pm 166 pm | Oxygen 48 pm 167 pm | Hydrogen 53 pm 169 pm |
|---|
Which element has the smallest atomic radius quizlet?
Silicon
has the largest atomic number and therefore silicon has the smallest atomic radius because atomic radii decrease from left to right across a period.
What metal has smallest atomic radius?
Higher energy electron shells are located further from the nucleus. So the atomic radius generally increases down a group in the periodic table. So the alkali metal that will have the smallest atomic radius is
lithium
.
Which is the correct order of atomic radius?
Atomic radius increases while moving down to the group in the periodic table
. Therefore, size of Rb > size of Cs. Atomic radius of element decreases while moving left to right in the periodic table.
Which are the elements having largest and smallest atomic radii in second period?
Solution :
Lithium has the largest atomic radius and oxygen has the smallest
.
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.
Lithium
is the first element of the second period and atomic size decreases across the period. Therefore, Li has the largest size.
Barium
(symbol:Ba) is the group 2 or alkaline earth metal that has the largest atomic radius, equal to 222 pm. Atomic number of Barium is 56.
Among Li+ &
B3+
, B3+ is smaller as it has higher nuclear charge due to which its size is reduce as electrons are strongly attracted. Hence among given options, B3+ is smallest.
Atomic radii increase toward the bottom left corner of the periodic table, with
Francium
having the largest atomic radius.
Boron is the first element from top in group 13 and the atomic size increases down the group. Therefore
boron is smallest in size
.
The exact list of metalloids is not agreed upon. However, boron, silicon, germanium, arsenic, antimony and tellurium are all frequently classified as metalloids.
Boron has the smallest atomic radius
of these metalloids.
Out of the following group 13 elements, element with smallest atomic radius is. Solution : Out of Al, Ga, In and Tl element with smallest atomic radius is
GA
.
It is fairly easy to arrange the atoms according to atomic size. We know that atomic size increases
from right to left and from top to bottom
in the Periodic Table. The smallest atoms are at the top right and the largest atoms are at the lower left of the Periodic Table.
It’s
F fluorine
. It has the smallest diameter in the second period.
Hydrogen (H) has the smallest average atomic radius at about 25 pm
, while caesium (Cs) has the largest average radius at about 260 pm.
Atomic radius increases while moving down to the group in the periodic table
. Therefore, size of Rb > size of Cs. Atomic radius of element decreases while moving left to right in the periodic table.
Lithium
is the first element of the second period and atomic size decreases across the period. Therefore, Li has the largest size.
