# Can an element have many gram atomic weights?

No, not really. An element has a single atomic weight, which is the
weighted average of all the isotopes of that element, weighted by
their natural abundance. Each element only has a single atomic
weight.

What this means is that different atoms of a single element can
weigh different amounts because different isotopes have different
numbers of neutrons. However, the atomic weight represents the
average for all forms of that element, and so there is only one
value. The different isotopes of an element certainly have
different *mass numbers*, which is just the sum of the number
of neutrons and protons however.

### How many atoms are in a 341 g sample of scandium?

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.

### How many atoms are in one cubic centimeter of copper?

Here is the process for finding the answer. Weigh one cubic centimeter of copper on a scale that reports the weight in grams. Take that weight, in grams), and multiply it by 63.546 (which is the atomic weight of copper) to get how many gram atomic weights of copper is in one cubic centimeter of copper. Take that number and multiply it times Avagadros Number which is the number of atoms in one gram atomic…

### How many grams are in one mole of water?

one mole of any element is equals to its gam(Gram Atomic Mass) and one mole of any molecule is also equals to that molecules gram atomic mass. Lets calculate the gram molecular mass of water : h2o = 2 hydrogen atoms, 1 oxygen atom = 2 hydrogen x 1g (gram atomic mass of hydrogen) + 1 oxygen x 16g (gram atomic mass of oxygen) = 2 + 16 = 18g Therefore 1 mole of water…

### How would you determine how many grams are in a mole of any chemical element or compound?

The periodic table of elements gives a gram molecular weight for each element, which tells you the number of grams that a mole of that element weighs. So, for an element you can look up that answer immediately; for a compound, you just determine the gram molecular weight of each element that is present in that compound, and multiply by the number of atoms of that element per molecule. Note that the weight of an…

### Why is it not possible for an atom to have an atomic number less than the atomic mass?

The atomic number of an element is how many protons that element has, then you have to take in how many neutrons it has then add that together to get you mass number. The mass number is how many protons+neutrons you have i an element, and the atomic number is how many protons you have in an atom. But the Atomic Mass is the average of the normal elements Atomic number+ the elements isotopes atomic…

### How many number of atoms are in 27.0 g of aluminum?

The gram atomic mass of aluminum, which is defined as the mass of Avogadro's Number of atoms of the element, is 26.9815. To the justified number of significant digits, this is the same as the gram atomic mass. Therefore, the mass stated in the question contains Avogadro's Number of atoms: to the justified number of significant digits, 6.02 X 1023.

### What is atomic number 39?

The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses). The atomic number us unique for each element and positions the element in the periodic table. The element with atomic number 39 is Yttrium (Y).

### If your atomic number is 3 how many neutrons do you have?

Atomic number does not directly relate to # of neutrons, Atomic # is the number of protons in the atom of an element. You need to know the atomic mass of the element too-Not just the atomic # to find out how many neutrons it has. If you know the atomic mass, then you can subtract the element's atomic # from that and voila! you get the # of neutrons. If ur confused: atomic mass…