The First 20 Elements The first 20 elements 0.0 / 5 ? ChemistryAtomic structureOtherNone Created by: sheskely1Created on: 09-11-14 16:50 This elemnt is a gas hydrorogen 1 of 20 This is used in balloons helium 2 of 20 This element has an elctron configration of 2.1 lithium 3 of 20 This elemnt has a mass number of 4 beryllium 4 of 20 This element has 5 electrons boron 5 of 20 Is produced in limestone production carbon 6 of 20 Has 7 electrons nitrogen 7 of 20 We need theis to breathe oxygen 8 of 20 This is in toothpaste fluorine 9 of 20 This element is a noble gas neon 10 of 20 Atomic number is 11 sodium 11 of 20 Chemical symbol K potassium 12 of 20 This element is in group 3 aluminium 13 of 20 Has a mass number of 14 silicon 14 of 20 Would need to gain 3 electrons to have a full outer shell phoshorus 15 of 20 This element can be found in acid rain sulphur 16 of 20 In swimming pools chlorine 17 of 20 In group 0 argon 18 of 20 Has 19 electrons potassium 19 of 20 Found in milk calcium 20 of 20
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