Question 11 MarkA molecule of hydrogen is made up of three atoms of hydrogen.AnswerFalse. A molecule of hydrogen is made up of two atoms of hydrogen.View full question & answer→
Question 21 MarkCompounds are substances made up of two or more elements.AnswertrueView full question & answer→
Question 31 MarkSulphur is a metalloidAnswerFalse. Sulphur is a non-metal.View full question & answer→
Question 41 MarkSome metals exist as gases.AnswerFalse. No metals exist as gases.View full question & answer→
Question 51 MarkA pure substance consists of a single type of particle.AnswertrueView full question & answer→