all atoms of the same element have the same

You know elements are all the different types of atoms on the periodic table. How are elements and molecules alike and different?īecause like all things in the world, elements and molecules are both made of atoms. If you had very, very good eyes and could look at… If you change the number of protons an atom has, you change the type of element it is. For example, the element hydrogen is made from atoms containing a single proton and a single electron. Which is an element made of one type of atom?Īn element is a substance that is made entirely from one type of atom.

Once you have moles, multiply by Avogadro’s number to calculate the number of atoms. So, if you are given the mass of an element, you use the periodic table to find its molar mass, and multiply the given mass by the reciprocal of the molar mass.

What do all atoms have the same number of?Ītoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well. If one copper atom has an electron in an excited state and another copper atom has all of its electrons in the ground state, then the two atoms are different. Two atoms of the same element can be different if their electrons are in different states. 4 How many isotopes are there in an element?Īn element is a pure substance and is made of only one type of atom it cannot be broken down into a simpler substance.Ĭan an element have different types of atoms?.3 Which is an element made of one type of atom?.2 What do all atoms have the same number of?.

All atoms of the same element have the same