question 6\n1 pts\nwhich of the following elements is in the same period as ca?\n○ k\n○ cl\n○ mg\n○…

question 6\n1 pts\nwhich of the following elements is in the same period as ca?\n○ k\n○ cl\n○ mg\n○ br\nquestion 7\n1 pts\nwhat do the noble gases in group 18 have in common?\n○ sought after by kings\n○ similar chemical properties\n○ flammable gases\n○ used in crowns and scepters

question 6\n1 pts\nwhich of the following elements is in the same period as ca?\n○ k\n○ cl\n○ mg\n○ br\nquestion 7\n1 pts\nwhat do the noble gases in group 18 have in common?\n○ sought after by kings\n○ similar chemical properties\n○ flammable gases\n○ used in crowns and scepters

Answer

Brief Explanations:

For Question 6: Periods in the periodic table are horizontal rows. Carbon (C) is in period 2. Magnesium (Mg) is in period 3, Chlorine (Cl) is in period 3, Molybdenum (Mo) is in period 5, and Boron (B) is in period 2. For Question 7: Noble gases in group 18 have similar chemical properties because they have a full outer - electron shell, making them very stable and unreactive.

Answer:

Question 6: B. B Question 7: B. similar chemical properties