Which property do transition metals have in common?(1 point)
A. They are usually very reactive
B. They usually have low densities
C. They usually have high melting points
D. They are usually very soft
C. They usually have high melting points
C. They usually have high melting points
To find the correct answer, we need to understand the properties of transition metals. Transition metals are characterized by their position in the periodic table, specifically from groups 3 to 12. They share several common properties, but we need to identify which property they have in common.
First, let's evaluate option A, which states that transition metals are usually very reactive. Transition metals are generally less reactive than alkali metals or alkaline earth metals, which are found in groups 1 and 2, respectively. This reactivity decreases as you move across the transition metal series from left to right. Therefore, option A is incorrect.
Next, let's consider option B, which suggests that transition metals usually have low densities. Transition metals tend to have higher densities compared to most other elements. Therefore, option B is also incorrect.
Now, let's examine option C, which states that transition metals usually have high melting points. This is indeed true for most transition metals. Transition metals have strong metallic bonding, which results in high melting points. Therefore, option C is a plausible answer.
Lastly, let's assess option D, which claims that transition metals are usually very soft. Transition metals are known for their strength and durability. They are typically harder than alkali metals and alkaline earth metals. Therefore, option D is also incorrect.
Based on our evaluation, the correct answer is:
C. They usually have high melting points.