Ok, an atom is supposedly the smallest indivisible unit( at least in basic chemistry)
Now an atom is composed of 3 baser particles, Protons, Neutrons and electrons.
The Proton's are significant, since this is the particle that gives the atomic number to an element in the Periodic Table. It is also how a chemist defines an element. So for example 1 proton, is the atomic number 1, is the first element on the periodic table, and it is Hydrogen. Hydrogen uses the chemical symbol H
Second example 8 protons, is the atomic number 8, and is the 8th element on the periodic table, Oxygen is it's name. Oxygen uses the chemical symbol O.
Now for the formulae, H2O, is the chemical formula for Water, and the H stands for Hydrogen. The "2" symbolizes that you have 2 components (or atoms) of Hydrogen and the O stands for Oxygen. There is only one atom of Oxygen so it is just understood that with no number attached to the formula, that there is only the one atom.
So the formula H2O shows the elements that are combined to represent the water molecule. This allows a chemist who is trained to read the formula to easily understand the composition of the elements that make up the molecule.
For an ionic compound, the name of the positive ion comes first, followed by the name of the negative ion. It also tells the ratio of the atoms and tells what atoms make up the compound.they describe the type and number of atoms in a molecule of the compound
I am not sure I understand this question. In simplest terms, it can be said that almost all atoms consist of three smaller particles, protons, neutrons and electrons. Only one the lightest form of the hydrogen atom consists of a single proton and a single electron. Protons and neutrons "cling" closely together to form the nucleus at the centre of the atom. The electrons orbit the nucleus. The protons, neutrons and electrons of all elements are identical and interchangeable.
Bonds are broken by rearrangement of electrons, and then new bonds are made, again by rearrangement (sharing, donating, etc) of electrons.
The terms metal and non-metal are usually applied to the elements. Hydrogen fluoride is a covalent gas- it is a chemical compound.
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
How are elements described in terms of their atoms
A difference of chemical properties is observed for light elements; for other elements these differences are extremely small.
The terms good or bad are not adequate for chemical elements.
Each chemical element has atoms with a specific number of protons, different from the atoms of other elements.
Nebulae are clouds of dust and gas that are composed of various chemical elements.
A compound contain two or more elements associated by chemical bonds.
hi
a chemical change destroys the old atoms and molecules to make completely new ones and a completely new substance.
A chemical reaction is a reaction in which elements have their chemical and/or physical properties altered by the end of the reaction.
It does mean that the number of atoms in both sides of a chemical reactions are equal.
For an ionic compound, the name of the positive ion comes first, followed by the name of the negative ion. It also tells the ratio of the atoms and tells what atoms make up the compound.they describe the type and number of atoms in a molecule of the compound
The most basic level that elements are organized on the periodic table is according to their atomic number. Elements were originally organized purely by mass but this led to some inconsistency due to the occurrence of isotopes.