An atom that had 7 valence electrons will most likely; Not interact with other atoms Gain an electron from another atom Have no atomic mass Donate an electron to another atom

On which quantum numbers does the energy of an electron depend in each of the following? a. a one-electron atom or ion b. an atom or ion with more than one electron

Which elements in a given period (horizontal row) of the periodic table lose electrons most easily? Why?

Element 106 has been named seaborgium, Sg, in honor of Glenn Seaborg, discoverer of the first transuraniurn element. a. Write the expected electron configuration for element 106. b. What other element would be most like element 106 in its properties?

Order the atoms in each of the following sets from the least negative electron affinity to the most. a. N, O, F b. Al, Si, P

The energy of a photon of visible light emitted by an excited atom is the energy change that takes place within the atom itself.

Indicate whether each of the following statements is true or false. If false, correct the statement. (a) An electron transition from n=3 to n=1 gives off energy. (b) Light emitted by an n=4 to n=2 transition will have a longer wavelength than that from an n=5 to n=2 transition. (c) A sublevel of l=3 has a capacity of ten electrons. (d) An atom of Group 13 has three unpaired electrons.

The following shapes each represent an orbital of an atom in a hypothetical universe. The small circle is the location of the nucleus in each orbital. a If you placed an electron in each orbital, which one would be higher in energy? b When an electron makes a transition from the orbital represented on the right to the orbital on the left, would you expect energy to be absorbed or released? c Draw a sketch of an orbital of the same type that would be higher in energy than either of the two pictured orbitals.

Identify the atom or ion corresponding to each of the following descriptions: (a) an atom with ground-state electron configuration [Kr]4d105s25p1 (b) an ion with charge 22 and ground-state electron configuration [Ne]3s23p6 (c) an ion with charge +4 and ground-state electron configuration [Ar]3d3

The number of unpaired electrons in the outer subshell of a phosphorus atom atomic number 15 is: a. 2 b. 0 c. 3 d. 1