A compound is a substance composed of atoms of two or more elements chemically united in a fixed ratio. A compound is a substance that cannot be separated into simpler substances by chemical means. Which of the following is true about compound?Ī compound must be a solid at room temperature. All atoms of the same element are identical in size, shape & mass. All elements consist of atoms which are indivisible & indestructible. Atoms are the smallest fundamental units of matter. Is all matter made of atoms True or false?Īll matter is made up of atoms. There are 118 elements, but only 92 occur naturally. Gold, for instance, is an element, and so is carbon. Is all matter made up of elements or compounds?Īll matter is made up of substances called elements, which have specific chemical and physical properties and cannot be broken down into other substances through ordinary chemical reactions.
3 Which statement is not true of a compound?.2 Which of the following is true about compound?.
1 Is all matter made up of elements or compounds?.
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