Question

Question 6 5 pts Which of the following statements about different elements is/are true? 1. As is a metalloid and Se is a nonmetal. 2. Cu is a transition element and Ge is a metalloid. 3. Both F and I are halogens. O 3 only O 1, 2, and 3 О 1 and 2 O 2 only 1 only Question 7 Сл How many neutrons are there in the cobalt-59 nuclide? O 2 O 86 O 27 O 32 59 5 p

Answer 1

The correct statement among the options is:

1. As is a metalloid and Se is a nonmetal.

2. Cu is a transition element and Ge is a metalloid.

3. Both F and I are halogens.

Therefore, the correct answer is "1, 2, and 3".

Let's break down each statement to understand why they are true:

1. As is a metalloid and Se is a nonmetal:

Metalloids are elements that have properties of both metals and nonmetals. As (arsenic) is commonly classified as a metalloid. Se (selenium), on the other hand, is a nonmetal.

2. Cu is a transition element and Ge is a metalloid:

Transition elements are located in the d-block of the periodic table and have partially filled d orbitals. Cu (copper) is a transition element. Ge (germanium), on the other hand, is classified as a metalloid due to its properties.

3. Both F and I are halogens:

Halogens are a group of elements located in Group 17 of the periodic table. They are highly reactive nonmetals. F (fluorine) and I (iodine) both belong to this group and exhibit typical halogen characteristics.

To summarize, all three statements are correct. As is a metalloid, Se is a nonmetal, Cu is a transition element, Ge is a metalloid, and F and I are both halogens.