Question 12 Refer to a periodic table and predict which of the following is a metal. Ge OF Sb OS Ο ΑΙ Question 14 3 El

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Question 12 Refer to a periodic table and predict which of the following is a metal. Ge OF Sb OS Ο ΑΙ

Question 14 3 Element W has two natural isotopes: W-10 (10.013 amu) and W-11 (11.009 amu). Calculate the atomic mass of element W given the abundance of W-10 is 19.66%. 10.51 amu 10.21 amu 4.133 amu 10.81 amu 16.89 amu

Question 15 What is the electron configuration for an atom of nickel? 1s22s22p63s23p64524d8 1s22s22p63s23p64524p8 1s22s22p 3s 3p63d8 1s22s22p 3s23pº4s23d8