The idea of atoms explains the conservation of matter. In chemical reactions, the number of atoms stays the same no matter how they are arranged. So, their total mass stays the same.
Isotopes are atoms of a given element that have the same number of protons but a different mass number and therefore a different number of neutrons.
According to John Dalton, all the atoms of a single element will have the same mass. This is the basis for the modern atomic theory.
this phrase refers to the" law of conservation of mass ".this law states that the total mass of the reactants is equal to the total mass of products after reaction has completed .or the total number of atoms taking part in a chemical reaction as reactants is equal to the total number of atoms obtained as products
Dear questioner,As an answer to your question I should mention there are atoms which have the same number of protons but are considered different. These atoms are called Isotopes. Isotopes of an element have the same number of protons but the number of Neutrons are not the same. Isotopes have the same chemical virtues but in the physical virtues related to mass they are a bit different.
The gram-atomic mass of sulphur is 32 and that of oxygen is 16, to two significant digits. Therefore, the mass of oxygen with the same number of atoms as 64 grams of sulphur can be found from the proportion m/64 = 16/32, or m = 32 grams.
yes.
Yes, they are.
well, they are the same thing unless there are now a isotope
Sulfur and Oxygen are in the same group, or column, because they both have the same number of valence electrons, which is six.
Yes, atoms of sulfur are identical.
The mass of hydrogen and oxygen in the reactants is the same as the mass of the water produced. The balanced chemical equation for this reaction is 2H2 + O2 --> 2H2O. Notice that the numbers of hydrogen and oxygen atoms are the same on both sides of the equation.
Hydrogen atoms are the smallest known elements, and therefore smaller than oxygen atoms (according to atomic weight and atomic mass).
For the same reason that one dozen pencils has a smaller mass than one dozen bricks. Each atom of carbon weighs less than each atom of sulfur, and a mole of each has the same number of atoms, so a mole S will weigh more than a mole C.
Elements showing properties similar to oxygen would be those that are found in the same group as oxygen (group 6A, or 16). Those would be sulfur (S), and selenium (Se)
Sulfur (S)
Because they are all the same type of atoms. Oxygen is an element. If you have 10 oxygen atoms, they will all behave like oxygen, since they are the same element.