1) Electrons occupy particular energy levels, called shells a) True b) False 2) The first shell holds a maximum of 2 electrons a) True b) False 3) The next two shells hold 6 electrons each a) True b) False 4) In the first 3 shells 18 electrons in total can be held a) True b) False 5) The nucleus of an atom has no charge a) True b) False 6) Electrons are positively charged a) True b) False 7) Argon has 8 electrons in its outer shell a) True b) False 8) When electrons fill up shells they start at the closest to the nucleus a) True b) False 9) Atomic number is the number of protons in the nucleus a) True b) False 10) Ionic bonding needs a metal and non-metal element to happen a) True b) False 11) What type of bonding does NaCl have? a) Covalent b) Ionic 12) Protons are found in shells around the outside of the nucleus a) True b) False 13) Which has a negative charge? a) Protons b) Electrons 14) What does the compound need to be for electrolysis to work? a) Solid b) Liquid 15) What is the charge on a magnesium ion in an ionic compound? a) +1 b) +2

Atomic Structure Quiz

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