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How many electron energy levels do elements in period 4 contain?
4
In general, elements in which group have the largest ionization energy?
Group 17
What is electronegativity?
How strongly an atom attracts bonding electrons
How does atomic radius change going down a group?
Increases
Kamya found an element that is brittle, nonconductive, and has a low melting point. Is it a metal, nonmetal, or metalloid?
Nonmetal -- all three properties are those of nonmetals
What is TRUE of both phosphorus and sulfur?
Nonmetals, period 3, 3 electron orbitals/energy levels
