atoms and elements?) A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons.
An element is a substance that is made entirely from one type of atom.
For example, the element hydrogen is made from atoms containing just one proton and one electron.
What elements make up an atom?
An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.
How many atoms are in an element?
Atomic mass of element= 1 mole of the element = 6.022 x 10^23 atoms of that element. eg.
Whats does element mean?
An element is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element’s atoms have the same atomic number. Elements are chemically the simplest substances and hence cannot be broken down using chemical reactions.
What is atom molecule and element?
An element is a substance that is made entirely of one type of atom. For example, the element sodium is made up of only sodium atoms. A molecule is a substance that contains two or more atoms chemically joined, such as H2,O2.