which of the following categories includes two-thirds of all elements?
a.Metalloids
b.metals
c.liquids
d.nonmetals
C. I know metals take up 3/4 of it? I'm unsure
I think it's (B) Metals. Though I agree with you, it's got to be more than 2/3 of all elements.
The correct answer is b. metals.
Metals make up the majority of elements in the periodic table, accounting for about two-thirds of all elements. Nonmetals and metalloids make up the remaining one-third.
To determine which category includes two-thirds of all elements, we can calculate the percentage represented by each category. Here's how you can do it:
1. Start by identifying the total number of categories (in this case, 4).
2. Divide the quantity of elements in each category by the total number of elements to get the respective percentages.
3. Compare the percentages to identify which category has a value nearest or equal to two-thirds (66.67%).
Let's go through the calculations for each category:
a. Metalloids: To determine the percentage, you need to know the number of elements classified as metalloids and the total number of elements. Without this information, we cannot calculate the percentage for this category.
b. Metals: You mentioned that metals take up 3/4 of all elements. Assuming you meant 75%, this means that metals account for 75% of all elements. Since two-thirds is equivalent to approximately 66.67%, metals would represent more than two-thirds of all elements.
c. Liquids: Without information about the number of elements classified as liquids, we cannot calculate the percentage for this category.
d. Nonmetals: Since we have not performed calculations for the other categories, we cannot determine if nonmetals encompass two-thirds of all elements.
Based on the information provided, it is unclear which category includes two-thirds of all elements. To determine the answer definitively, we would need more specific data on the quantity of elements in each category.