question 36 (2 points)\nhow many electrons are in the highest occupied energy level of a neutral chlorine…

question 36 (2 points)\nhow many electrons are in the highest occupied energy level of a neutral chlorine atom?\nblank 1:\n\nquestion 37 (2 points)\nhow many electrons are in the highest occupied energy level of a neutral strontium atom?\nblank 1:\n\nquestion 38 (2 points)\nhow many electrons are in the highest occupied energy level of copper?\nblank 1:\n\nquestion 39 (2 points)\nhow many electrons are there in the highest occupied energy level of atoms in group 5a elements?\nblank 1:
Answer
Explanation:
Question 36
Step1: Determine the electron configuration of chlorine
Chlorine has an atomic number of 17. Its electron configuration is (1s^{2}2s^{2}2p^{6}3s^{2}3p^{5}). The highest occupied energy level is the third energy level ((n = 3)).
Step2: Count electrons in the highest energy level
In the third energy level ((3s^{2}3p^{5})), the number of electrons is (2 + 5=7).
Question 37
Step1: Determine the electron configuration of strontium
Strontium has an atomic number of 38. Its electron configuration is (1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{10}4p^{6}5s^{2}). The highest occupied energy level is the fifth energy level ((n = 5)).
Step2: Count electrons in the highest energy level
In the fifth energy level ((5s^{2})), the number of electrons is (2).
Question 38
Step1: Determine the electron configuration of copper
Copper has an atomic number of 29. Its electron configuration is (1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{1}3d^{10}). The highest occupied energy level is the fourth energy level ((n = 4)).
Step2: Count electrons in the highest energy level
In the fourth energy level ((4s^{1})), the number of electrons is (1).
Question 39
Step1: Recall the group - electron relationship
For main - group elements, the group number (for groups 1A - 8A) gives the number of valence electrons (electrons in the highest occupied energy level). Group 5A elements have 5 valence electrons.
Answer:
Question 36: 7 Question 37: 2 Question 38: 1 Question 39: 5