Which of the Following Is Correct

question 8

Multiple Choice

Which of the following is correct?

• A)The element H is in both the first period and the seventh period
• B)The element Na is in Group 2A/2
• C)The element Ge is in the fourth period and Group 4A/14
• D)The element Cr is in the third period and Group 6B/6
• E)More than one of the statements above are correct

---

Definitions:

Blinding

A method in experimental design that prevents participants, experimenters, or both from knowing which intervention participants are receiving to reduce bias.

Average Prices

The mean amount of money required to purchase a particular set of goods or services.

Supermarket Chains

Companies that own or operate multiple supermarket stores across different locations.

Blocking Variable

A variable introduced in an experimental design to account for potential variation, thereby reducing confounding effects.