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Diameter of Atoms

Join the Discussion "Visit the About Chemistry forum to add your own questions and answers. You can even suggest a message to add to this index." Dr. Helmenstine     Related Resources • How Things Work • Home Experiments • Chemistry How-To Index • Homework Help    From Other Guides • Astronomy • Biology • Geology • Math • Physics

mrchemistry asks,

"What is the relationship between the elements atomic numbers and the diameters of their atoms? Why do you think so? The elements are Mg, Ca, Sr, Ba."...

HEMDI answers:

"Atomic radii ( diameter ) of group elements in general increase as increase of atomic number or as agroup is descende becuase electrons are being added to shells farther from the nucleus . so Atomic radii order : Mg < Ca < Sr < Ba atomic number : 12 < 20 < 38 < 56 ...As I know there is no link or relationship between atomic radii sets and atomic numbers"

Read all of Message 1159.

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