Therefore, rubidium has the largest atomic radius whereas helium has the smallest.
Which element 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.
Which periodic group 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.
Which element has the smallest atomic radius Calciumpotassiumscandiumtitanium?
The given elements potassium, calcium, scandium, and titanium all belongs to third period. Therefore, out of these elements potassium is at the extreme left and titanium is towards the right. Thus, we can conclude that titanium is the element which has the smallest atomic radius.
Which element in group 1 has the smallest atomic radius?
(A) Trends in the Atomic Radius of Group 1 (IA, Alkali Metals) Elements
Element | Atomic Number (Z) | Trend |
---|---|---|
lithium | 3 | smallest | |
sodium | 11 | ↓ |
potassium | 19 | ↓ |
rubidium | 37 | ↓ |
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.
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 smaller atomic radius beryllium Be or barium ba?
For the given group 2A elements, beryllium is at the top so it has smaller atomic radius whereas barium is at the bottom. Therefore, we can conclude that barium has the largest atomic radius.
What is the largest atomic radius in Group 18?
The Electron Configurations for Noble Gases
Atomic # | Atomic radius (pm) | |
---|---|---|
Ar | 18 | 71 |
Kr | 36 | 88 |
Xe | 54 | 108 |
Rn | 86 | 120 |
Which of the following has the largest atomic radius quizlet?
The general trend in atomic radius is that moving down the periodic table, the size increases; moving across the periodic table from left to right, the size decreases. Therefore, rubidium has the largest atomic radius whereas helium has the smallest.
Which element has the largest atomic radius TI or as?
Atomic Radius of the elements
Helium | 31 pm | Cadmium |
---|---|---|
Argon | 71 pm | Rhodium |
Chlorine | 79 pm | Gold |
Boron | 87 pm | Titanium |
Sulfur | 87 pm | Platinum |
Which element has a larger atomic radius than sulfur chlorine cadmium fluorine oxygen?
Fluorine and chlorine are in the same group (17), with chlorine directly below fluorine, so the atomic radius of chlorine is larger than the atomic radius of fluorine.
Which element would release the most energy?
Answer Expert Verified. Br would release the most energy while adding an electron to a neutral atom in the gas phase. Bromine is a chemical element with symbol Br and atomic number 35.
Which element has the largest atomic radius in Group 1?
Trends in Atomic Radius of Group 1 Elements
name | atomic radius (pm) | Trend |
---|---|---|
sodium | 186 | ↓ |
potassium | 425 | ↓ |
rubidium | 244 | ↓ |
caesium | 262 | largest |
Which 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 has largest radius?
Since the atomic radius decreases in a period but increases down the group so Sr of group II and period V is largest in size.