From group 17 (7A), fluorine has the lowest atomic radius.
Each column going down the periodic table is an atomic group.
The element in group 1 with the smallest atomic radius is lithium, due to its higher nuclear charge compared to the other elements in the group (such as sodium and potassium). This higher nuclear charge attracts the electrons more strongly, leading to a smaller atomic radius.
Barium has a larger atomic radius than silicon. This is because atoms tend to increase in size as you move down a group in the periodic table due to the addition of more electron shells. Barium is in a lower group than silicon, resulting in a larger atomic radius.
Francium has the largest atomic radius among rubidium, cesium, and francium, as atomic radius generally increases down a group in the periodic table.
The element with the smallest atomic radius among calcium, potassium, scandium, and titanium is titanium. Atomic radius generally decreases from left to right across a period in the periodic table, and titanium is located towards the right side of the group mentioned.
Each column going down the periodic table is an atomic group.
Barium has a radius (not raduis) which is almost twice as large as that of silicon.
The element in group 1 with the smallest atomic radius is lithium, due to its higher nuclear charge compared to the other elements in the group (such as sodium and potassium). This higher nuclear charge attracts the electrons more strongly, leading to a smaller atomic radius.
Barium has a larger atomic radius than silicon. This is because atoms tend to increase in size as you move down a group in the periodic table due to the addition of more electron shells. Barium is in a lower group than silicon, resulting in a larger atomic radius.
The smallest element among lithium (Li), carbon (C), and fluorine (F) is lithium. It has the lowest atomic number of the three, which is 3, while carbon has an atomic number of 6 and fluorine has an atomic number of 9. Consequently, lithium has fewer protons and electrons compared to carbon and fluorine, making it the smallest element in this group.
idk if this is an answer but this is what i found in my book. atomic raduis increases down a group and decreases across a period
Beryllium (Be) is the group 2 element with the smallest atomic radius. This is due to its higher nuclear charge relative to its size, which results in a stronger attraction between the nucleus and the electrons, pulling them closer. As you move down the group, atomic radii increase because additional electron shells are added, outweighing the increase in nuclear charge.
The element in group 18 with the smallest radius is helium. As the lightest noble gas, helium has a very small atomic size due to its two protons and two electrons, which create a strong effective nuclear charge that pulls the electrons closer to the nucleus. This results in a smaller atomic radius compared to other elements in the same group.
Francium has the largest atomic radius among rubidium, cesium, and francium, as atomic radius generally increases down a group in the periodic table.
In a given period, the element with lowest atomic mass will belong to group 1. It should also be noted that lithium is the metal with the smallest atomic mass.
The element with the smallest atomic radius among calcium, potassium, scandium, and titanium is titanium. Atomic radius generally decreases from left to right across a period in the periodic table, and titanium is located towards the right side of the group mentioned.
Element 115 on most modern periodic charts.