Starter Question

Which of the following elements has a greater atomic radius?

Silicon or sulfur?

Magnesium or barium?

Which of the following elements has a lower electronegativity?

Oxygen or gallium?

Calcium or antimony?

Which of the following has a higher first ionization energy?

Indium or aluminum?

Strontium or iodine?

1. Most of the elements in groups 6-8 are classified as…a) alkali metalsb) non metalsc) transition metalsd) alkaline earth metals

2. Which element has the highest electronegativity?a) fluorineb) Calciumc) Neond) helium

3. How many valence electrons does a chlorine atom have if its electron configuration is [Ne] 3s2 3p5?a) 3b) 21c) 5d) 7

4. It can be predicted that element 118 would have properties similar to a(n)a) alkali earth metalb) noble gasc) halogend) metalloid

5. In which classification is an element placed if the outermost 3 sublevels of its atoms have a ground state electron configuration of 3p6 4s2 3d10?a) alkaline earth metalsb) metalloidsc) non metalsd) transition metals

6. When a sodium atom becomes an ion, the size of the atoma) decreases by losing an electronb) decreases by gaining an electronc) increases by losing an electrond) increases by gaining an electron

7. The maximum number of electrons in any orbital isa) 1b) 2c) 3d) 4

8. Compared to an argon atom a neon atom has a a) larger atomic numberb) greater number of electronsc)smaller radiusd) smaller first ionization energy

9. Which of the following has the highest frequencya) gamma raysb) x-raysc) microwavesd) radio waves

10. Calculate the frequency of green light which has a frequency of 5.20x10-8m

When you are finished please place your tests in the tray on Miss Wheeler’s desk

1. Most of the elements in groups 6-8 are classified as…a) alkali metalsb) non metalsc) transition metalsd) alkaline earth metals

2. Which element has the highest electronegativity?a) fluorineb) Calciumc) Neond) helium

3. How many valence electrons does a chlorine atom have if its electron configuration is [Ne] 3s2 3p5?a) 3b) 21c) 5d) 7

4. It can be predicted that element 118 would have properties similar to a(n)a) alkali earth metalb) noble gasc) halogend) metalloid

5. In which classification is an element placed if the outermost 3 sublevels of its atoms have a ground state electron configuration of 3p6 4s2 3d10?a) alkaline earth metalsb) metalloidsc) non metalsd) transition metals

6. When a sodium atom becomes an ion, the size of the atoma) decreases by losing an electronb) decreases by gaining an electronc) increases by losing an electrond) increases by gaining an electron

c= νλ

3x108 = ν x 5.20x10-8

ν= 5.77x1015 Hz

9. Which of the following has the highest frequencya) gamma raysb) x-raysc) microwavesd) radio waves

10. Calculate the frequency of green light which has a frequency of 5.20x10-8m

You have the rest of the lesson to revise for your Unit 3 test on Thursday. •Review Chapters 5 & 6 of the textbook•Try the practice problems and end of chapter questions•Write notes•Write a quiz and quiz each other•Learn one area of the course and teach it to a friend, then have them reciprocate