Science, asked by christine1528, 5 months ago

The _______________Elements are those elements within the first two families,
Groups 1 and Il including the last ____________families or groups (on the right) of the
Periodic Table. These are the______________ which easily take part in chemical reactions​

Answers

Answered by KhataranakhKhiladi2
5

Answer:

s block

alkali metals.

alkaline earth metals.

Explanation:

Remember that Mendeleev arranged the periodic table so that elements with the most similar properties were placed in the same group. A group is a vertical column of the periodic table. All of the 1A elements have one valence electron. This is what causes these elements to react in the same ways as the other members of the family. The elements in 1A are all very reactive and form compounds in the same ratios with similar properties with other elements. Because of their similarities in their chemical properties, Mendeleev put these elements into the same group. Group 1A is also known as the alkali metals. Although most metals tend to be very hard, these metals are actually soft and can be easily cut.  Group 2A is also called the alkaline earth metals. Once again, because of their similarities in electron configurations, these elements have similar properties to each other. The same pattern is true of other groups on the periodic table. Remember, Mendeleev arranged the table so that elements with the most similar properties were in the same group on the periodic table.

Answered by Anonymous
0

Answer:

refer above answer....................

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