341 grams scandium (1 mole Sc/44.96 grams)(6.022 X 1023/1 mole Sc)
= 4.57 X 1024 atoms of scandium
=====================
Scandium sulfide ScS: 2 atomsScandium sulfide Sc2S3: 5 atoms
That depends on how much of the substance you have. Assuming you mean in one formula, the answer is 7.
There are approximately 6 x 10^22 atoms in a 12.0 gram sample of sodium.
Scandium has 3 valence electrons.
Scandium has 3 valence electrons.
Scandium sulfide ScS: 2 atomsScandium sulfide Sc2S3: 5 atoms
That depends on how much of the substance you have. Assuming you mean in one formula, the answer is 7.
The gram atomic mass of scandium is 44.9559. From the definition of Avogadro's Number, one gram atomic mass of any element contains 6.022 X 1023 atoms of the element. 341/44.9559 constitutes about 7.585 gram atomic masses and therefore contains (7.585)(6.022 X 1023) or 4.57 X 1024 atoms of scandium, to the justified number of significant digits.
341g = 12.03oz
A 88,1 gram sample of Ag contain 4,9185.10e23 atoms.
After 10740 years, half of the sample would have decayed, so there would be 200 atoms left. If the original sample had 400 atoms, then there would be 200 atoms left in the sample after 10740 years.
The number of atoms is 1,50553521.10e23.
There are approximately 6 x 10^22 atoms in a 12.0 gram sample of sodium.
Approx. 9.1024 atoms.
Scandium has 3 valence electrons.
Scandium has 3 valence electrons.
Scandium has 1 3d electron.