Ch 4

2. Ibrahim is studying the electron affinity of halogens. He knows that fluorine has a very negative electron affinity, while chlorine has an even more negative one. Which halogen has the most negative electron affinity?

3. Which of the following is a metalloid?

4. Patricia is studying the density of metals and non-metals. She knows that metals generally have high density, while non-metals have lower density. Which of the following is a metal with very low density?

5. Quinn is studying the electrical conductivity of metals. He knows that metals are good conductors of electricity. Which of the following is the best conductor of electricity among metals?

6. Nora is studying the properties of noble gases. She knows that they are generally unreactive due to their stable electron configuration. Which noble gas is used in balloons because of its low density?

7. Waseem is studying the boiling points of metals and non-metals. He knows that metals generally have high boiling points. Which of the following is a metal with a very low boiling point?

8. Non-metals are mostly found on:

9. Chemical properties of elements depend mainly on:

10. Chloe is studying the periodic table and learns about the names of some groups. She knows that Group 1 elements are highly reactive metals. What is the name of Group 1?