Question

question 9
what is true about the position of any nonmetal in the periodic table?
○ it is to the left of the zigzag line.
○ it is in the first group.
○ it is to the right of the zigzag line.
○ it is in the last period.

question 10
using a periodic table, determine which element is in period 6, group 2?
○ chromium
○ radium
○ barium
○ tungsten

Explanation:

Question 9

In the periodic table, the zigzag (staircase) line separates metals (left of the line) and nonmetals (right of the line), with metalloids along the line. So nonmetals are to the right of this line. The first group has metals (e.g., alkali metals), and nonmetals are not restricted to the last period.

• Chromium: Period 4, Group 6.
• Radium: Period 7, Group 2.
• Barium: Period 6, Group 2.
• Tungsten: Period 6, Group 6.

By recalling or checking the periodic table, Barium (Ba) is in Period 6 (6th row) and Group 2 (2nd column, alkaline earth metals).

Answer:

C. It is to the right of the zigzag line.

Question 10