I believe the answer is copper.... you can always ask for the atomic number or search a chart (images) on Google. :-)
Size gets bigger as you go down.
Both atoms have the same van der Waal's radius (2.00) Radii that are not available in either of these publications have RvdW 2.00 A. However, Caesium has a greater covalent radius (1.67) as compared to that of Radon (1.50) See the link for more info.
What trend is seen in atomic size going down the Periodic Table?
Atomic size of sodium is 186
60
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Bromine, Copper, Calcium, PotassiumBromine- smallest, 4th period atomic #35Copper- second smallest, 4th period, atomic # 29Calcium- second largest, 4th period, atomic # 20Potassium- largest, 4th period, atomic # 19
Platinum has an atomic mass of 195.08 & Vanadium has an atomic mass of 50.9415. So platinum is bigger in size.
From the given elements, potassium has the largest atomic radius.
Copper has relatively easily available electron as compare to the iron because copper has bigger atomic size than iron which means the shielding effect in copper is more than iron so the electron of copper can conduct heat more easily and efficiently as compare to the electron of the iron which make iron not a good conductor of heat if it is compair to copper.
Size gets bigger as you go down.
Down a group, atomic size increases. So Mt is bigger than Co.
The potassium atom has a larger radius. When potassium loses an electron to become a cation (positively charged ion), it also loses the energy level in which the electron was. Therefore the potassium ion is smaller that the potassium atom.
Element 19, potassium: atomic radius = 227 pm. Element 35, bromine: atomic radius = 120 pm.
Both atoms have the same van der Waal's radius (2.00) Radii that are not available in either of these publications have RvdW 2.00 A. However, Caesium has a greater covalent radius (1.67) as compared to that of Radon (1.50) See the link for more info.
IIRC Atoms (contains Protons/Neutrons and electrons) Nucleus contains Protons and Nuetrons Proton atomic size 1 Nuetron atomic size 1 electron atomic size 1/1836 i.e the proton is 1836 bigger than the electron
it S2-, because when you add electrons, you are making the atomic radius bigger. In S2-, you add 2 electron, making it bigger. hope that helped.