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Argon is the atom that has the smallest radius in Period 3. As you go cross Period 3 from left to right, the atomic radii of the elements decrease. The elements in Period 3 from left to right begin with sodium and ends with argon.
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∙ 9y ago
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∙ 6y agoThe smallest Vander Waal radius is 120 pm for hydrogen.
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∙ 6y agoRuthenium (Ru) has the smallest atomic radius in period 5 - 130 pm.
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∙ 10y agothe smallest atom in period 3
Sandrine K
Agron
Nasir Nader
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∙ 13y agoArgon
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∙ 14y agoArgon
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∙ 11y agoNeon :)
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Rank these elements in terms of increasing atomic radius?
In terms of atomic radius, the sequence would be oxygen, carbon (both period 2), magnesium (period 3), rubidium (period 4), and cesium (period 5). Note that order by periods is not absolute: in each period, the elements toward the far left side have the largest radii. For example, the radius for lithium in period 2 is larger than almost all of the elements in periods 3 and 4. *Numerically, the elements O, C, Mg, Rb, and Cs have respective radii of about 60, 70, 150, 235, and 260 picometers.
What property increases going down the periodic table?
Your question is incorrect. It should be increases rather than decreases. Well it is the proton number (Z) that increases.
What happens to the atomic radius within a group of elements?
Because as you go down the group the atomic number increase. And by that the number of electrons in the electron cloud increases, thus widening the atomic radii. ***************2nd Opinion**************** If that were true, then atomic radius would also increase as you move to the right in a series. The reason atomic radius increases going down a family is that each atom has electrons in a whole new energy level compared to the atom above it. For example, Group 1: The outer shells are 1s, 2s, 3s, 4s, 5s, 6s, 7s.
What is rhodium group number and period number?
Rhodium data: - group 9 - period 5 - atomic number 45
What number is iodine on the periodic table?
Atomic number 53, column 17, and period 5.
What happens to the atomic radius when you go from left to right on the periodic table of elements?
The atomic radius decrease, with several exceptions in periods 6 and 5.
Rank these elements in terms of increasing atomic radius?
In terms of atomic radius, the sequence would be oxygen, carbon (both period 2), magnesium (period 3), rubidium (period 4), and cesium (period 5). Note that order by periods is not absolute: in each period, the elements toward the far left side have the largest radii. For example, the radius for lithium in period 2 is larger than almost all of the elements in periods 3 and 4. *Numerically, the elements O, C, Mg, Rb, and Cs have respective radii of about 60, 70, 150, 235, and 260 picometers.
What property increases going down the periodic table?
Your question is incorrect. It should be increases rather than decreases. Well it is the proton number (Z) that increases.
What period is strontium in?
Period 5 with the atomic number of 38.
What is the size of cobalt the atom?
The atomic radius of cobalt is about 135 pm (±5 pm).
What happens to the atomic radius within a group of elements?
Because as you go down the group the atomic number increase. And by that the number of electrons in the electron cloud increases, thus widening the atomic radii. ***************2nd Opinion**************** If that were true, then atomic radius would also increase as you move to the right in a series. The reason atomic radius increases going down a family is that each atom has electrons in a whole new energy level compared to the atom above it. For example, Group 1: The outer shells are 1s, 2s, 3s, 4s, 5s, 6s, 7s.
What are the group number and period of the elements in the periodic table if it has an atomic number of 40?
Zirconium(Zr) has an atomic number of 40. It is in Group 4 and Period 5.
What has the lowest atomic number of any metal?
Bromine, because Bromine has an atomic mass of only 5.
What is the highest atomic number in period 5?
We can find Polonium as a non metal element. Atomic number of it is 84.
What metal is in period 7 group 5?
Dubnium atomic number 105
What is rhodium group number and period number?
Rhodium data: - group 9 - period 5 - atomic number 45
What number is iodine on the periodic table?
Atomic number 53, column 17, and period 5.
