The metal used for making $X$-ray tube window is :
- $Mg$
- $Na$
- $Ca$
- $Be$
The Correct Option is D
Solution and Explanation
Top Questions on GROUP 2 ELEMENTS
- The correct order of density is
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- \(BeH_2\)
- \(LiH\)
- \(LiCl\)
- \(BeAlH_4\)
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- Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution?
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Questions Asked in JEE Main exam
Let \( \alpha = \dfrac{-1 + i\sqrt{3}}{2} \) and \( \beta = \dfrac{-1 - i\sqrt{3}}{2} \), where \( i = \sqrt{-1} \). If
\[ (7 - 7\alpha + 9\beta)^{20} + (9 + 7\alpha - 7\beta)^{20} + (-7 + 9\alpha + 7\beta)^{20} + (14 + 7\alpha + 7\beta)^{20} = m^{10}, \] then the value of \( m \) is ___________.- JEE Main - 2026
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$x + y + z = 6$
$2x + 5y + az = 36$
$x + 2y + 3z = b$
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Concepts Used:
Group 2 Elements
The group two or alkaline earth metals are s-block elements with two electrons in their s-orbital. They are alkaline earth metals. They are named so because of the alkaline nature of the hydroxides and oxides.
Alkaline earth metals are characterized by two s-electrons. This group of elements includes:
- Beryllium (Be)
- Magnesium (Mg)
- Calcium (Ca)
- Strontium (Sr)
- Barium (Ba)
- Radium (Ra)
Elements whose atoms have their s-subshell filled with their two valence electrons are called alkaline earth metals. Their general electronic configuration is [Noble gas] ns2. They occupy the second column of the periodic table and so-called as group two metals also.