1) What is the charge of a proton? a) Positive (+1) b) Negative (-1) c) Neutral (0) 2) What is the charge of an electron? a) positive (+1) b) negative (-1) c) neutral (0) 3) The first shell holds 2 electrons. How many electrons can the other shells hold? a) 2 b) 4 c) 8 4) How many protons are there in this sodium atom? a) 11 b) 23 c) 12 5) All atoms have the same number of protons and neutrons. True or false? a) True b) False 6) Which group in the Periodic Table is this referring to. "They are unreactive because they have a complete outer shell of electrons" a) Alkali metals (group 1) b) Noble gases (group 0) c) Halogens (group 7) 7) If this is the electron arrangement for gallium, what group does it belong in? 2, 8, 3 a) Group 2 b) Group 3 c) Group 0 d) Group 7 8) A charged atom is called an ion. True or false? a) True b) False 9) Why do atoms turn into ions? a) So they become happy b) To get a full shell of electrons c) They have electrons they don't want 10) What is an ionic bond? a) Atoms sharing electrons b) The attraction between two ions c) Ions sitting next to each other d) Repulsion between two positive ions 11) If an ion has 9 positive protons and 10 negative electrons, what overall charge will it have? a) -1 b) 0 c) +1 12) If an element has one outer shell electron, it needs to lose that electron to get a full shell. What charge ion will that make? a) +7 b) +1 c) -1 13) How many electrons has this element lost? a) 1 b) 2 c) 3 d) 0 14) 2, 8, 6 If this is the electron arrangement for an element, what will the charge be for the ion it makes? a) -1 b) -2 c) -6

Atoms and ions

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