The elements are arranged in order of the _________ of their atoms, Periodic Table , Weight, Size, Mass, The rows are called __________, Groups, Metals, Periods, Non-Metals, What is K in the periodic table? , Magnesium, Pottasium, Sodium, Hydrogen, The collumns are called _______, Groups, collumn of periodic table , periods, rows, Number of elements, 94, 24, 118, 20, What is Li? , Lithium, Hydrogen, What is Be? , Beryllium, Boron, What is Na? , Calcium, Sodium, What is mg? , Magnesium, Iron, What is Ca? , Carbon, Calcium, What is Al? , Sulfur, Aluminium, What is P, Pottasium, phosphorus, Symbol of fluorine, F, Fl, Electricity can be used to split water into the elements _____________, Hydrogen, Nitrogen, oxygen, A, C, Each element has its own chemical _________, Name , Letter, Iyeroglif, symbol, Suggest why people used to believe that water was an element? , Because it cannot be break down, Because it can be break down, Name two gases that are found in air, Nitrogen and Oxygen, Hydrogen an oxygen, None of them correct, only nitrogen, Is air an element? , Yes, No, Is water an element? , Yes, No, Which is the most common non-metal found in the Earth's crust? , nitrogen, oxygen, hydrogen, silicon, Which is the most common metal found in the earth's crust? , Bronze , aluminium, Diamond, Gold, Mercury, symbol ___, Me, Hg, M, Fg, Sodium, symbol _______, S, Na, So , Sd, Iodine crystal, symbol ___, Ic, I, Ci, Df, A flask of chlorine gas, symbol____, Cl, Cg, Gc, Ch, Choose the biggest one. Atom or molecule, Atom, They are the same , Molecule, A group of atoms joined tightly together is called ______, particles, helium, molecules, sulfur, What Roman coins are made of? , Bronze, Pure gold, aluminum, plastic, Meaning of atom, Can be divided, Very small, Can not be divided, Very big, Meaning of Nano, Very big, Beautiful, Very small, Can be divided, Who suggested that everything was made up of tiny pieces? , Galileo, Democritus, Robert brown, John, When Democritus suggested that everything was made up of tiny pieces? , 1800s, 1900 years agoo, 2000 years ago, 5000 years ago, How many atoms contains molecule? , Two, Three, Four, A, B.

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