1) Overall atoms are a) Positive b) Negative c) Neutral 2) The alkali metals are a) Soft, reactive and low in density b) Hard, unreactive and dense c) Soft, unreactive and dense 3) The halogens form a) Monoatomic molecules b) Diatomic molecules c) Either 4) The most reactive alkali metal is a) Lithium b) Potassium c) Francium 5) The most reactive halogen is a) Fluorine b) Chlorine c) Astatine 6) Metal atoms from a) Positive ions b) Negative ions 7) Non metal atoms from a) Positive ions b) Negative ions 8) CO2, O2, Cl2 are all examples of  a) Giant ionic compounds b) Alloys c) Simple covalent molecules 9) Covalent bonding involves a) Sharing electrons b) Transferring electrons 10) Covalent bonding happens between a) Metal atoms b) Non metal atoms c) Metal and non metal atoms 11) Ionic bonding involves a) Sharing electrons b) Transferring electrons 12) Ionic bonding happens between a) Metal atoms b) Non metal atoms c) Metal and non metal atoms 13) Atoms of sodium have a) 11 protons, 11 neutrons and 12 electrons b) 12 protons, 11 neutrons, 12 electrons c) 11 protons, 12 neutrons, 11 electrons 14) The electronic structure of sodium a) 8.2.1 b) 2.8.1 c) 2.1.8 15) Isotopes have a) The same number of neutrons, different number of protons b) The same number of protons, different number of neutrons 16) Na (group 1) and Cl (group 7) react. Sodium chloride has the chemical formula a) NaCl b) Na2Cl c) NaCl2 17) Mg (group 2) and Cl (group 7) react. Magnesium chloride has the chemical formula a) MgCl b) Mg2Cl c) MgCl2

GCSE Chemistry fundamentals

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