1) What family of elements is in the left-most column of the Periodic Table? a) Alkali metals b) Halogens c) Noble gases d) Transition metals 2) The electronic structure of Phosphorus is ....? (atomic number = 15, mass number= 31) a) 2,5 b) 2,8,3 c) 2,8,5 d) 2,10,3 3) What is the noble gas shorthand electron for Sulfur atom? a) [Ar] 3p 4 b) [Ne] 3s 2 ,3p 4 c) [He] 3s 2 ,3p 4 d) [Na] 3s 2 ,3p 4 4) The electronic structure of Magnesium is ...? (atomic number= 12, atomic mass= 24) a) 2,8 b) 2,8,8,4 c) 2,8,2 d) 2,8,7 5) The electronic structure of Calcium is ...? (atomic number= 20, mass number= 40) a) 2,8,8,2 b) 2,8,8 c) 2,8,10 d) 2,8,40 6) How many elements are in the periodic table? a) 118 b) 100 c) 101 d) 98 7) Who present periodic table of elements that you use today? a) Albert Einstein b) Dmitri Mendeleev c) Isaac Newton d) Galileo Galilei 8) An atom of an element has the electronic structure 2,8,8,2. What is its atomic number? a) 18 b) 19 c) 20 d) 21 9) The atomic number of an atom is the number of ______ in the atom's nucleus. a) electron b) neutron c) proton d) valence electron 10) Elements in the same column of the Periodic Table have what in common? a) The same atomic weight b) The same number of electrons in the outermost shell c) The same total number of electrons d) The same number of electron shells

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