Which property do transition metals have in common?(1 point)
Responses
They are usually very soft.
They are usually very soft.
They are usually very reactive.
They are usually very reactive.
They usually have low densities.
They usually have low densities.
They usually have high melting points.
They usually have high melting points.
Neon and argon are both in Group 18 of the periodic table. Which property do they most likely share?(1 point)
Responses
metallic texture
metallic texture
low or no reactivity
low or no reactivity
silver color
silver color
strong odor
low or no reactivity
Use the periodic table to answer the question.
An illustration shows the periodic table.
Which two elements most likely have similar properties?
(1 point)
Responses
Ca and Sc
Ca and Sc
Cs and Rn
Cs and Rn
F and Ne
F and Ne
Li and Fr
Li and Fr
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Ca and Sc
A scientist studies an element that has seven electrons in its outer shell, is fairly toxic, is a gas at room temperature, and is highly reactive. To which group of the periodic table does this element belong?(1 point)
Responses
18 - noble gases
18 - noble gases
2 - alkaline earth metals
2 - alkaline earth metals
17 - halogens
17 - halogens
1 - alkali metals
17 - halogens
On the periodic table, lithium and beryllium are in different groups. Which statement describes why the two elements are in different groups?(1 point)
Responses
They have a different number of electrons in their outer shells.
They have a different number of electrons in their outer shells.
They have different atomic numbers.
They have different atomic numbers.
They are different colors.
They are different colors.
They have a different number of electron shells.
They have a different number of electron shells.
They have a different number of electrons in their outer shells.
The correct answer is that transition metals usually have high melting points. Transition metals are a group of elements in the periodic table that are found in the middle, between the main group elements. They exhibit several properties in common, but the property they share in this case is having high melting points.
To find the answer, we can systematically analyze each response option and eliminate the ones that are incorrect.
The first option states that transition metals are usually very soft. While many transition metals are indeed softer than other types of metals, it is not a property that they commonly share. Therefore, we can eliminate this option.
The second option suggests that transition metals are usually very reactive. While it is true that transition metals can be reactive, not all of them exhibit this property, so we can eliminate this option as well.
The third option claims that they usually have low densities. However, transition metals are generally heavy elements, and they tend to have higher densities compared to other metals. Therefore, we can eliminate this option too.
The last option, stating that transition metals usually have high melting points, is the correct choice. Transition metals have metallic bonds that are strong and exhibit a unique characteristic known as d-d bonding, which contributes to their high melting points.
In conclusion, the property that transition metals commonly have in common is having high melting points.