Exam01answers pg4 - from left to right across a row, and...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
5. p Explanation: 010 (part 1 of 1) 10 points What is the ground state electronic conFgu- ration of an atom of arsenic (As)? 1. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 3 d 10 4 p 3 correct 2. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 4 p 6 3 d 7 3. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 3 d 8 4 p 3 5 s 2 4. 1 s 2 1 p 6 2 s 2 2 p 6 2 d 10 3 s 2 3 p 5 5. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 4 p 6 5 s 2 5 p 5 Explanation: 011 (part 1 of 1) 10 points Which of the following best describes the range of atomic radii? 1. 0.05 to 1 ˚ A 2. 5 to 10 ˚ A 3. 0.4 to 3 ˚ A correct 4. 10 to 30 ˚ A 5. 1 to 15 ˚ A 6. 1 to 100 ˚ A Explanation: Atomic radii vary from 30 pm (He) to 300 pm (±r). 1 ˚ A= 10 - 10 m = 100 pm, so the range of atomic radii is 0.3 to 3 ˚ A. 012 (part 1 of 1) 10 points A single f orbital can be occupied by a maxi- mum of how many electrons? 1. 7 2. 2 correct 3. 6 4. 10 5. 14 Explanation: An orbital can only ever hold a maximum of 2 electrons no matter what type of orbital it is. 013 (part 1 of 1) 10 points Which of the following atoms would have the smallest size (atomic radius)? 1. B 2. N 3. O correct 4. Li 5. S Explanation: Atomic radii become smaller as you move
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: from left to right across a row, and also smaller as you move up a column. Diagonal relation-ships can be tricky, especially when you have to decide which of the two relationships will be the most important. Here, luckily, the comparison works well. The smallest radius here would then belong to the element which sits closest to the top right corner of the peri-odic table, which is O in this example. 014 (part 1 of 1) 10 points Rank the following in terms of decreasing ionic radii. 1. -, O 2-, N 3-, Na + , Mg 2+ 2. N 3-, O 2-, -, Na + , Mg 2+ correct 3. Mg 2+ , Na + , -, O 2-, N 3-4. Na + , Mg 2+ , O 2-, N 3-, -5. Na + , Mg 2+ , N 3-, O 2-, -Explanation:...
View Full Document

Ask a homework question - tutors are online