atoms and elements and compounds, Study notes of Family and Consumer Science

Download atoms and elements and compounds and more Study notes Family and Consumer Science in PDF only on Docsity!

11 — Atoms and Elements Qi @ Q3 a) b) ° d) e) a4 Why didn't scientists know much about atoms for a long time? Fill in the blanks in these sentences about the discovery of the atom using the words on the right. Dalton was the first scientist to try and explain things about ..........-0 element matter | there Were weve. Kinds of atom, and that €aCh ....... ccc atoms different He said that all... Was Made up of atoms. He also said that contained a different type of atom. Write agree or disagree for each of the statements below. Elements are substances that contain only one type Of atOM. .......cccesceseeessecesteseesesteseetesteneeneeeeeees An element can be split up into simpler parts by chemical methods. .........sscssecsessesseessesteeseeseesessees® All matter on Earth is made up of elements. There are over 100 different Elements. .......ceccccescesessesseseseseesestssesessssessssesssessesassesarsueataneataneavansaeseeee Each element has a name and a shorthand symbol. ..........c.cccccscccssesscsesscsesecsessesesvesessesesecsesveseeseasee Each element contains at least two atoms joined UP. .......eseesessesssessessesssssesseesecsseasessessessessessessesssenee The symbol for an element is always the first letter of its name. .. Put a tick (W) next to all the things below that are elements. Carbon Nitrogen Air Carbon dioxide Uranium Steel My pet hamster Helium Section 5 — Classifying Materials