Look at the Periodic Table or ask a more specific question, please.
Covalent compounds
1)all matter are made of very tiny particles called atoms2)atoms are indivisible particles, which cannot be created or destroyed in a chemical reacition3)atoms of a given element are indentical in mass and chemical properties4)atoms of different elements have different masses and chemical properties5)atoms combine in ratio of small whole numbers to form compounds6)the relative number and kinds of atoms are constant in a given compound
daltons atomic postulations stated that: * Elements are made of tiny particles called atoms. * All atoms of a given element are identical. * The atoms of a given element are different from those of any other element; the atoms of different elements can be distinguished from one another by their respective relative weights. * Atoms of one element can combine with atoms of other elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms. * Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped together.
Atoms of a given element always have the same number of protons in their nucleus. Neutrons can vary (in different isotopes) and electrons can vary (in different ions) but protons are always the same for a given element. If the number of protons is changed, then you no longer have the same element.
Dalton believed that there was a different atom for each element that there was, and that these atoms made up the elements that were in existence. He did not say exactly how these atoms were different, just that they were different. Dalton also believed that all of the atoms for a given element were exactly alike in every way.
Hydrocarbons
Isotopes.
look @ the periodic table :)
Atoms of the same element cannot have different numbers of protons. Different numbers of protons mean different elements. An atom with the a different number of neutrons is called an isotope.
The IUPAC name for the alkane given is the systematic name assigned to the specific alkane based on its structure and number of carbon atoms.
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.
This is a covalent bonding.
Covalent compounds
1)all matter are made of very tiny particles called atoms2)atoms are indivisible particles, which cannot be created or destroyed in a chemical reacition3)atoms of a given element are indentical in mass and chemical properties4)atoms of different elements have different masses and chemical properties5)atoms combine in ratio of small whole numbers to form compounds6)the relative number and kinds of atoms are constant in a given compound
daltons atomic postulations stated that: * Elements are made of tiny particles called atoms. * All atoms of a given element are identical. * The atoms of a given element are different from those of any other element; the atoms of different elements can be distinguished from one another by their respective relative weights. * Atoms of one element can combine with atoms of other elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms. * Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped together.
Atoms of a given element always have the same number of protons in their nucleus. Neutrons can vary (in different isotopes) and electrons can vary (in different ions) but protons are always the same for a given element. If the number of protons is changed, then you no longer have the same element.
No - different isotopes of an element have different numbers of neutrons. All atoms of an element will have the same number of protons.