12. if each orbital can hold a maximum of two electrons, how many electrons can each of the following hold?
a.
b. 2s c. 5p d. 4f e. 3d f. 4d
for the following electron configurations choose 3 possible elements (or ions) they may represent
1. 1s2 2s22p6 3s23p6 4s2 3d10 4p4
2. 1s2 2s22p6 3s23p6 4s2 3d10 4p5
3. 1s2 2s22p6 3s23p6 4s2 3d10 4p6
4. 1s2 2s22p6 3s23p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s1
5. 1s2 2s22p6 3s23p6 4s2 3d10 4p6 5s24 d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d8

For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa