Fill in the following blanks with suitable words:
(a) An element is made up of only one kind of ………….
(b) Brine is a ………… whereas alcohol is a ………….
(c) Brass is an alloy which is considered a ………….
(d) The three important metalloids are ………….
(e) The elements which are sonorous are called ………….
(a) atoms
(b) mixture; compound
(c) mixture
(d) boron; silicon; germanium
(e) metals