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There are 18 columns in the periodic table; each has a group number. Give the group numbers that make up each of the following blocks __.

a) s block
b) p block
c) d block?

1 Answer

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Final answer:

The s block consists of group numbers 1 and 2, the p block includes groups 13 through 18, and the d block contains groups 3 through 12 of the periodic table.

Step-by-step explanation:

The group numbers that make up each block of the periodic table are as follows:

  • s block: This block includes the elements where the s subshells are being occupied. Accordingly, the group numbers for the s block are groups 1 and 2, which correspond to the first two columns on the left side of the periodic table. These groups contain the alkali and alkaline earth metals.
  • p block: The p block comprises the elements where the p subshells are being occupied. The group numbers for the p block are groups 13 to 18. These are the right-most six columns of the periodic table and include nonmetals, halogens, and noble gases.
  • d block: The elements in the d block have their d subshells occupied. The group numbers for the d block span from groups 3 to 12. This section contains the transition metals and is found in the middle portion of the periodic table.

Keep in mind that there are alternate numbering systems for the periodic table groups, but the system with groups numbered 1 through 18 is endorsed by the International Union of Pure and Applied Chemistry (IUPAC) and is widely used internationally.

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