(a) Periods
(b) Increases
(c) Decreases
(d) Increases
(e) Decreases
Fill in the blanks in the following statements: (a) The horizontal rows in a periodic table are called _______. (b) In going across a period (right to left) in periodic table, the atomic size of the atom _______. (c) On moving from right to left in the second period, the number of valence electrons _______. (d) On going down in a group in the periodic table, the metallic character of elements _______. (e) The tendency to gain an electron_______ on moving down in a group of the periodic table.
Fill in the blanks in the following statements: (a) The horizontal rows in a periodic table are called _______. (b) In going across a period (right to left) in periodic table, the atomic size of the atom _______. (c) On moving from right to left in the second period, the number of valence electrons _______. (d) On going down in a group in the periodic table, the metallic character of elements _______. (e) The tendency to gain an electron_______ on moving down in a group of the periodic table.
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Find the shortest distance between the given lines. ![\[\begin{array}{l} \square \vec{r}=(\hat{i}+\hat{j})+\lambda(2 \hat{i}-\hat{j}+\hat{k}) \\ \vec{r}=(2 \hat{i}+\hat{j}-\hat{k})+\mu(3 \hat{i}-5 \hat{j}+2 \hat{k}) \end{array}\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-2f8ab5b81e582387cb9ae472791476e4_l3.png "Rendered by QuickLaTeX.com")
![\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{-2}](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-c5a91864ba7e1e0ed1b5d273d822f5e5_l3.png "Rendered by QuickLaTeX.com")
(b) ![\left[\mathrm{Pd}(\mathrm{CN})_{4}\right]^{2-}](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-ffda616d3dbe7dc8925722e87005924e_l3.png "Rendered by QuickLaTeX.com")
(c) ![\left[\mathrm{PdCl}_{4}\right]^{2-}](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-90cc6a4f4d42dee46e06d6f8ed516b7a_l3.png "Rendered by QuickLaTeX.com")
(d) ![\left[\mathrm{NiCl}_{4}\right]^{2}](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-149ee5c95bd9cfcc4405704fba2e1bab_l3.png "Rendered by QuickLaTeX.com")
(d) all of these