What are the top 10 elements in the human body?

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data-srcset="https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?webp=true&quality=90&resize=556%2C370, https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?webp=true&quality=45&resize=1112%2C740 2x, https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?webp=true&quality=45&resize=1668%2C1111 3x, https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?webp=true&quality=45&resize=2224%2C1481 4x" type="image/webp"><source media="(min-width: 590px)" data-srcset="https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?quality=90&resize=556%2C370, https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?quality=45&resize=1112%2C740 2x, https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?quality=45&resize=1668%2C1111 3x, https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?quality=45&resize=2224%2C1481 4x" type="image/jpeg"><img class="wp-image-13991 align size-landscape_thumbnail image-handler__image image-handler__image--aspect no-wrap js-lazyload" data-src="https://images.immediate.co.uk/production/volatile/sites/4/2018/08/Body-Raja-Lockey_0-63d92be.jpg?quality=90&resize=620%2C413" width="620" height="413" alt="What are the top 10 elements in the human body? © Raja Lockey" title="What are the top 10 elements in the human body? © Raja Lockey"> What are the top 10 elements in the human body? © Raja Lockey Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun facts.