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If S and T are two sets such that S has 21 elements, T has 32 elements, and S ∩ T has 11 elements, how many elements does S ∪ T have?
It is given that: n(S) = 21, n(T) = 32, n(S ∩ T) = 11 We know that: n (S ∪ T) = n (S) + n (T) – n (S...
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If X and Y are two sets such that X has 40 elements, X ∪Y has 60 elements and X ∩Y has 10 elements, how many elements does Y have?
It is given that: n(X) = 40, n(X ∪ Y) = 60, n(X ∩ Y) = 10 We know that: n(X ∪ Y) = n(X) + n(Y) – n(X ∩ Y) ∴ 60 = 40...
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Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.
Hydrogen is the first element of the periodic table. Its electronic configuration is [1s 1 ]. Due to the presence of only one electron in its 1s shell, hydrogen exhibits...
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2 blocks of 'm' are connected to a spring at rest at opposite ends. A pulling force of F on one of the blocks is away from the other one.
Extension of string= Xo
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2 blocks of 'm' are connected to a spring at rest at opposite ends. A pulling force of F on one of the blocks is away from the other one.
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2 blocks of 'm' are connected to a spring at rest at opposite ends. A pulling force of F on one of the blocks is away from the other one.
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2 blocks of 'm' are connected to a spring at rest at opposite ends. A pulling force of F on one of the blocks is away from the other one.
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In what way is the electronic configuration of the transition elements different from that of the non-transition elements?
Transition metals have a partially filled d−orbital. Therefore, the electronic configuration of transition elements is (n − 1)d1-10 ns0-2. The non-transition elements either do not have a d−orbital or have a...
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If S and T are two sets such that S has 21 elements, T has 32 elements, and S ∩ T has 11 elements, how many elements does S ∪ T have
It is given that: n(S) = 21, n(T) = 32, n(S ∩ T) = 11 We know that: n (S ∪ T) = n (S) + n (T) – n (S...
1 Answers 1 views
If X and Y are two sets such that X has 40 elements, X ∪Y has 60 elements and X ∩Y has 10 elements, how many elements does Y have
It is given that: n(X) = 40, n(X ∪ Y) = 60, n(X ∩ Y) = 10 We know that: n(X ∪ Y) = n(X) + n(Y) – n(X ∩ Y) ∴ 60 = 40...
1 Answers 1 views