Chemistry, 27.05.2020 04:57, netflixacc0107

Read the given expression.
X = number of protons - number of core electrons
Which of the following explains the identity of X and its trends across a period?
X is the effective nuclear charge, and it remains constant across a period.
X is the screening constant, and it remains constant across
period.
X is the effective nuclear charge, and it increases across a period.
X is the screening constant, and it increases across a period.

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 22:30, mauifrifer3986

Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.

Answers: 1

continue

Chemistry, 22.06.2019 02:40, alexandraparava

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

Answers: 2

continue

Chemistry, 22.06.2019 04:00, armahoney8566

Gymnast always perform on padded mats. how does the mats protect the gymnast

Answers: 2

continue

Chemistry, 22.06.2019 07:20, rex1578

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic

Answers: 1

continue

Do you know the correct answer?

Read the given expression.
X = number of protons - number of core electrons
Which of the...