Protons and neutrons are the primary contributors to an atom's mass. Electrons make up an insignificant amount of mass. Atomic mass is determined by adding the number of protons and neutrons in a nucleus.
Yes. For example water molecules (2 hydrogen connected to 1 oxygen atom) have a bent shape.
Atoms do not have mass or volume in the traditional sense, as they are individual particles that make up matter. Instead, we typically refer to the mass and volume of a collection of atoms, such as a molecule or a sample of a substance. Atoms themselves are incredibly small and do not have a defined volume, but they do have mass, which is usually measured in atomic mass units (amu).
Therefore they are consider matter. Remember anything with a mass is matter.
Water has measurable mass because it is composed of molecules, which are made up of atoms. These atoms have mass, and when they come together to form a water molecule, that mass adds up. The total mass of water is a measure of the sum of all the masses of its individual molecules.
An object that has mass, volume, and is made up of atoms could be anything from a solid object like a rock or a book to a liquid like water or a gas like oxygen. Basically, any material substance in the world that has physical properties of mass and volume is made up of atoms.
Mass and atoms
atoms
The nucleus makes up most of the mass and the other things in the atom make up the rest.
The molar mass is the sum of the atomic weights of atoms contained in the molecule.
The sum of all Protons and Neutrons.
The nucleus makes up nearly all of the mass of an atom, with over 99% of its mass concentrated in the nucleus. Within the nucleus, most of the mass is found in the protons and neutrons, while the electrons surrounding the nucleus contribute very little to the overall mass.
Atoms and elements can vary in many ways. Atoms mainly vary by having different numbers of protons, electrons, and neutrons. The count of protons makes up an elements mass number.
Oxygen is made up of It is replenished by plants and other photosynthetic organisms. Oxygen also makes up most of Earth's oceans by mass. A water molecule (H2O) is made up of two hydrogen atoms and one oxygen atom. Although there are more hydrogen atoms in water, hydrogen has less mass.
atoms
mass of protons + mass of neutrons
In a chemical reaction, the mass is made up of the reactants and products involved in the reaction. According to the law of conservation of mass, mass is neither created nor destroyed during a chemical reaction, but is instead rearranged to form new substances.
Yes. For example water molecules (2 hydrogen connected to 1 oxygen atom) have a bent shape.