The elements of which group in the periodic table release the most energy by gaining an electron? 1A The elements of which group in the periodic table absorb the most energy when gaining an electron? 2A 3A 4A 5A 6A 7A 8A 1A 3A 4A 5A 6A 7A 8A 0000

The electron configuration of the isotope 16O is 1s22s22p4. What is the electron configuration of the isotope 18O?

Draw the orbital diagram associated with each of the following electron configurations. a. 1s22s22p5 b. 1s22s22p63s1 c. 1s22s22p63s23p1 d. 1s22s22p63s23p64s23d5

Indicate whether the elements represented by the given pairs of electron configurations have similar chemical properties. a. 1s22s1 and 1s22s2 b. 1s22s22p6 and 1s22s22p63s23p6 c. 1s22s22p3 and 1s22s22p63s23p64s23d3 d. 1s22s22p63s23p4 and 1s22s22p63s23p64s23d104p4