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chromium (cr) is a metal in group 6 and period 4. which of the following is true?

chromium is a noble gas.

chromium has four electron shells.

chromium is a good conductor of electricity.

chromium has six electron shells.

chromium is a solid at room temperature.

Explanation:

The noble gases are characterized by having a very low chemical reactivity, that is, little possibility of combining with other elements of the periodic table. For that reason they have also received the name of inert gases. They are found in group eighteen (VIII A) of the periodic table, and chromium belongs to group six.

The table is divided into periods that are listed from 1 to 7 from top to bottom. Elements that belong to the same period have different properties, but similar masses, because they have the same number of orbitals. That is, the elements that belong to the same period have their electrons arranged in the same number of energy levels. For example, an element with five electronic layers will be located in the fifth period.

In this case, since chromium belongs to period four, the element has four electron shells.

Chromium (Cr) is a metal. Metals are characterized by being good thermal and electrical conductors because they oppose low resistance, therefore, the electrical charge can easily pass through these elements. They are also excellent heat conductors because they oppose poor resistance to high temperatures.

As mentioned, Chromium has four electron shells.  In a group, all the elements have the same number of electrons in their last layer, making the chemical properties very similar.  In this case, chromium has six electrons in its last level.

As mentioned, Chromium (Cr) is a metal. Generally metals are solid at room temperature (with the exception of mercury).

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