Question

3. Which is the correct electron configuration for a nitrogen atom? A) 1s22s22p B) 1s22s22pl C) 1s22s22p4 D) 1s22s22p3 E) [He]2s22p5 4. Which is the correct electron configuration for an oxide ion? A) 1s22s22p3 B) 1s22s22pl C) 1s22s22p6 D) 1s22s23s2 E) 1s22s22p2 5. Every orbital in a subshell is singly occupied with one electron before an doubly occupied, and all electrons in singly occupied orbitals have the sam describes A) Planck's constant B) Heisenberg Uncertainty Principle C) Pauli Exclusion Principle D) Avogadro's hypothesis E) Hund's rule 6. Atomic radius generally decreases as we move A) down a group and from right to left across a period B) up a group and from left to right across a period C) down a group and from left to right across a period D) up a group and from right to left across a period E) down a group; the period position has no effect