313388 In the given graph, a periodic property $(\mathrm{R})$ is plotted against atomic numbers $(\mathrm{Z})$ of the elements. Which property is shown in the graph and how is it correlated with reactivity of the elements?

313390 Consider the following elements.

Which of the following is/are true about ${\mathrm{A}}^{\prime },{\mathrm{B}}^{\prime },{\mathrm{C}}^{\prime }$ and ${\mathrm{D}}^{\prime }$ ?
(I) Order of atomic radii : ${\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }<{\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }$
(II) Order of metallic character :${\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }<{\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }$
(III) Size of the elements: ${\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }<{\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }$
(IV) Order of ionic radii : ${\mathrm{B}}^{\prime +}<{\mathrm{A}}^{{}^{\prime +}}<{\mathrm{D}}^{\prime +}<{\mathrm{C}}^{\prime +}$
Choose the correct answer from the options given below:

313391 The property of element that generally decreases along a period is

313388 In the given graph, a periodic property $(\mathrm{R})$ is plotted against atomic numbers $(\mathrm{Z})$ of the elements. Which property is shown in the graph and how is it correlated with reactivity of the elements?

313389 In which of the following arrangements, the order is not according to the property indicated after it in bracket?

313390 Consider the following elements.

Which of the following is/are true about ${\mathrm{A}}^{\prime },{\mathrm{B}}^{\prime },{\mathrm{C}}^{\prime }$ and ${\mathrm{D}}^{\prime }$ ?
(I) Order of atomic radii : ${\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }<{\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }$
(II) Order of metallic character :${\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }<{\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }$
(III) Size of the elements: ${\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }<{\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }$
(IV) Order of ionic radii : ${\mathrm{B}}^{\prime +}<{\mathrm{A}}^{{}^{\prime +}}<{\mathrm{D}}^{\prime +}<{\mathrm{C}}^{\prime +}$
Choose the correct answer from the options given below:

313391 The property of element that generally decreases along a period is

313388 In the given graph, a periodic property $(\mathrm{R})$ is plotted against atomic numbers $(\mathrm{Z})$ of the elements. Which property is shown in the graph and how is it correlated with reactivity of the elements?

313389 In which of the following arrangements, the order is not according to the property indicated after it in bracket?

313390 Consider the following elements.

Which of the following is/are true about ${\mathrm{A}}^{\prime },{\mathrm{B}}^{\prime },{\mathrm{C}}^{\prime }$ and ${\mathrm{D}}^{\prime }$ ?
(I) Order of atomic radii : ${\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }<{\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }$
(II) Order of metallic character :${\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }<{\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }$
(III) Size of the elements: ${\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }<{\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }$
(IV) Order of ionic radii : ${\mathrm{B}}^{\prime +}<{\mathrm{A}}^{{}^{\prime +}}<{\mathrm{D}}^{\prime +}<{\mathrm{C}}^{\prime +}$
Choose the correct answer from the options given below:

313391 The property of element that generally decreases along a period is

313388 In the given graph, a periodic property $(\mathrm{R})$ is plotted against atomic numbers $(\mathrm{Z})$ of the elements. Which property is shown in the graph and how is it correlated with reactivity of the elements?

313389 In which of the following arrangements, the order is not according to the property indicated after it in bracket?

313390 Consider the following elements.

Which of the following is/are true about ${\mathrm{A}}^{\prime },{\mathrm{B}}^{\prime },{\mathrm{C}}^{\prime }$ and ${\mathrm{D}}^{\prime }$ ?
(I) Order of atomic radii : ${\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }<{\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }$
(II) Order of metallic character :${\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }<{\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }$
(III) Size of the elements: ${\mathrm{D}}^{\prime }<{\mathrm{C}}^{\prime }<{\mathrm{B}}^{\prime }<{\mathrm{A}}^{\prime }$
(IV) Order of ionic radii : ${\mathrm{B}}^{\prime +}<{\mathrm{A}}^{{}^{\prime +}}<{\mathrm{D}}^{\prime +}<{\mathrm{C}}^{\prime +}$
Choose the correct answer from the options given below:

313391 The property of element that generally decreases along a period is