Problem: Another element is silvery-white with a shiny luster, is very brittle, and forms ions with a −2 charge. Give one possible identity of this element. Enter the symbol for the element.The table below gives some properties of selected elements. Note that the values shown for groups 10 and 16 are fairly representative of the d and p blocks, respectively.The physical and chemical properties of elements often show distinct trends within the periodic table. Melting point and density are just two examples. Familiarity with these trends can help you to identify an unknown element based on its physical and chemical properties.

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Problem Details

Another element is silvery-white with a shiny luster, is very brittle, and forms ions with a −2 charge. Give one possible identity of this element. 

Enter the symbol for the element.


The table below gives some properties of selected elements. Note that the values shown for groups 10 and 16 are fairly representative of the d and p blocks, respectively.

The physical and chemical properties of elements often show distinct trends within the periodic table. Melting point and density are just two examples. Familiarity with these trends can help you to identify an unknown element based on its physical and chemical properties.

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Our tutors have indicated that to solve this problem you will need to apply the Periodic Table concept. You can view video lessons to learn Periodic Table. Or if you need more Periodic Table practice, you can also practice Periodic Table practice problems.

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Based on our data, we think this problem is relevant for Professor Chibba & Davis' class at McMaster University.