everything we see in the universe
a group of the same attoms create an element and a group composed of different atoms forms a compound
Yes. Remember that when 2 atoms of the same or different elements combine, it forms a molecule. 2 hydrogen atoms + 1 Oxygen atom = 1 molecule of H20(water). The same holds true for proteins, proteins are composed of amino acids, which are in turn composed of different molecules, which are also composed of different atoms.
A compound is composed of different kinds of atoms that are covalently bonded together. Compounds are made up from atoms of different elements.
Elements and compounds are both composed of atoms. Compounds are composed of two or more atoms of different elements.
CCl4 forms covalent bonds. It is composed of carbon and chlorine atoms which share electrons to form stable molecules. Ionic bonds form between atoms with significantly different electronegativities.
Compounds are composed of two or more atoms of different elements.
A substance composed of a mixture of different atoms contains different types of atoms that are physically mixed together but not chemically bonded. In contrast, a compound composed of molecules consists of specific atoms chemically bonded together in fixed ratios to form distinct molecules with unique properties.
No, ethane is not an allotrope. Allotropes are different structural forms of the same element, while ethane is a compound composed of carbon and hydrogen atoms.
A substance composed of two or more atoms of the same element is just a pure substance/element, a substance composed of different atoms is called a compound
No. Water is a chemical compound and a pure substance. Hydrocarbons are a large class of compounds which are composed of the elements hydrogen and carbon. Allotropes are forms of the same element with a different arrangement of atoms (example: graphite and diamond are both pure carbon.)
All hydrogen atoms are the same but they are different from the atoms of other elements.
No.Sound is not composed of atoms.