11. Which one of the following contains the same number of atoms as 7 g
of iron?
(a) 4 g of a...
Chemistry, 06.01.2021 14:00 grahuntley31
11. Which one of the following contains the same number of atoms as 7 g
of iron?
(a) 4 g of aluminium (b) 4g of magnesium (C) 4g of sulphur
(d) 3 g of carbon (e) 4 g of calcium
Answers: 1
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Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
Answers: 2
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Which of the following is a property of nonmetals? a.nonmetals are ductile. b.nonmetals have a shiny luster. c.nonmetals have high density. d.nonmetals are nonconductors.
Answers: 1
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