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Give examples of metalloids....

Give examples of metalloids.

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Examples of metalloids are silicon and arsenic.
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Answer question numbers (a) - (d) on the basis of your understanding of the following paragraph and related studied concepts. You will see that the atomic size increases down the group. This is because new shells are being added as we go down the group. This increases the distance between the outermost electrons and the nucleus so that the atomic size increases in spite of the increase in nuclear charge. As we can see, the metals like Na and Mg are towards the left-hand side of the Periodic Table while the non-metals like sulphur and chlorine are found on the right-hand side. In the middle, we have silicon, which is classified as a semi-metal or metalloid because it exhibits some properties of both metals and non-metals. In the Modern Periodic Table, a zig-zag line separates metals from non-metals. The borderline elements - boron, silicon, germanium, arsenic, antimony, tellurium and polonium - are intermediate in properties and are called metalloids or semi-metals. (d) Give some examples of metalloids.

Name the metalloids.

Knowledge Check

  • Of the following pairs, the one containing examples of metalloid elements is:

    A
    `B` and `AI`
    B
    `Ga` and `Ge`
    C
    `AI` and `Si`
    D
    `As` and `Sb`

  • Of the following pairs, the one containing example of metalloids in the periodic table is

    A
    sodium and potassium
    B
    fluorine and chlorine
    C
    calcium and magnesium
    D
    boron and silicon

  • Of the following pairs, the one containing examples of metalloid elements in the periodic table is:

    A
    Na and K
    B
    F and CI
    C
    Cu and Ag
    D
    As and Sb

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    Name the metalloids.

    is a metalloid.

    Of the following pairs, the one containing example of metalloid elements in the periodic table is

    Of the following pairs , the one containing example of metalloid elements in the periodic table is

    Metalloids is

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