315847
The electronic configuration of barium is [Xe] \({\mathrm{x \mathrm{~s}^{2}}}\). What is the value of ' \({\mathrm{x}}\) '?
1 7
2 6
3 5
4 3
Explanation:
Barium is placed in group 2 and period 6 . So, its electronic configuration is \({\mathrm{[\mathrm{Xe}] 6 \mathrm{~s}^{2}}}\). \({\mathrm{\therefore}}\) Value of \({\mathrm{x}}\) is 6 .
315849
The one which does not show variable valency is
1 Barium
2 Titanium
3 Copper
4 Lead
Explanation:
Barium shows fixed valency where as \(\mathrm{Ti}\) and \(\mathrm{Cu}\) (transition metals) and \(\mathrm{Pb}\) (due to inert pair effect) show variable valency.
CHXI10:THE S-BLOCK ELEMENTS
315850
A firework gives out crimson coloured light. It contains a salt of
1 \(\mathrm{Ca}\)
2 \(\mathrm{Na}\)
3 \(\mathrm{Sr}\)
4 \(\mathrm{Ba}\)
Explanation:
Conceptual Questions
CHXI10:THE S-BLOCK ELEMENTS
315851
Calcium metal give which colour in the Bunsen burner flame
315847
The electronic configuration of barium is [Xe] \({\mathrm{x \mathrm{~s}^{2}}}\). What is the value of ' \({\mathrm{x}}\) '?
1 7
2 6
3 5
4 3
Explanation:
Barium is placed in group 2 and period 6 . So, its electronic configuration is \({\mathrm{[\mathrm{Xe}] 6 \mathrm{~s}^{2}}}\). \({\mathrm{\therefore}}\) Value of \({\mathrm{x}}\) is 6 .
315849
The one which does not show variable valency is
1 Barium
2 Titanium
3 Copper
4 Lead
Explanation:
Barium shows fixed valency where as \(\mathrm{Ti}\) and \(\mathrm{Cu}\) (transition metals) and \(\mathrm{Pb}\) (due to inert pair effect) show variable valency.
CHXI10:THE S-BLOCK ELEMENTS
315850
A firework gives out crimson coloured light. It contains a salt of
1 \(\mathrm{Ca}\)
2 \(\mathrm{Na}\)
3 \(\mathrm{Sr}\)
4 \(\mathrm{Ba}\)
Explanation:
Conceptual Questions
CHXI10:THE S-BLOCK ELEMENTS
315851
Calcium metal give which colour in the Bunsen burner flame
315847
The electronic configuration of barium is [Xe] \({\mathrm{x \mathrm{~s}^{2}}}\). What is the value of ' \({\mathrm{x}}\) '?
1 7
2 6
3 5
4 3
Explanation:
Barium is placed in group 2 and period 6 . So, its electronic configuration is \({\mathrm{[\mathrm{Xe}] 6 \mathrm{~s}^{2}}}\). \({\mathrm{\therefore}}\) Value of \({\mathrm{x}}\) is 6 .
315849
The one which does not show variable valency is
1 Barium
2 Titanium
3 Copper
4 Lead
Explanation:
Barium shows fixed valency where as \(\mathrm{Ti}\) and \(\mathrm{Cu}\) (transition metals) and \(\mathrm{Pb}\) (due to inert pair effect) show variable valency.
CHXI10:THE S-BLOCK ELEMENTS
315850
A firework gives out crimson coloured light. It contains a salt of
1 \(\mathrm{Ca}\)
2 \(\mathrm{Na}\)
3 \(\mathrm{Sr}\)
4 \(\mathrm{Ba}\)
Explanation:
Conceptual Questions
CHXI10:THE S-BLOCK ELEMENTS
315851
Calcium metal give which colour in the Bunsen burner flame
315847
The electronic configuration of barium is [Xe] \({\mathrm{x \mathrm{~s}^{2}}}\). What is the value of ' \({\mathrm{x}}\) '?
1 7
2 6
3 5
4 3
Explanation:
Barium is placed in group 2 and period 6 . So, its electronic configuration is \({\mathrm{[\mathrm{Xe}] 6 \mathrm{~s}^{2}}}\). \({\mathrm{\therefore}}\) Value of \({\mathrm{x}}\) is 6 .
315849
The one which does not show variable valency is
1 Barium
2 Titanium
3 Copper
4 Lead
Explanation:
Barium shows fixed valency where as \(\mathrm{Ti}\) and \(\mathrm{Cu}\) (transition metals) and \(\mathrm{Pb}\) (due to inert pair effect) show variable valency.
CHXI10:THE S-BLOCK ELEMENTS
315850
A firework gives out crimson coloured light. It contains a salt of
1 \(\mathrm{Ca}\)
2 \(\mathrm{Na}\)
3 \(\mathrm{Sr}\)
4 \(\mathrm{Ba}\)
Explanation:
Conceptual Questions
CHXI10:THE S-BLOCK ELEMENTS
315851
Calcium metal give which colour in the Bunsen burner flame
315847
The electronic configuration of barium is [Xe] \({\mathrm{x \mathrm{~s}^{2}}}\). What is the value of ' \({\mathrm{x}}\) '?
1 7
2 6
3 5
4 3
Explanation:
Barium is placed in group 2 and period 6 . So, its electronic configuration is \({\mathrm{[\mathrm{Xe}] 6 \mathrm{~s}^{2}}}\). \({\mathrm{\therefore}}\) Value of \({\mathrm{x}}\) is 6 .
315849
The one which does not show variable valency is
1 Barium
2 Titanium
3 Copper
4 Lead
Explanation:
Barium shows fixed valency where as \(\mathrm{Ti}\) and \(\mathrm{Cu}\) (transition metals) and \(\mathrm{Pb}\) (due to inert pair effect) show variable valency.
CHXI10:THE S-BLOCK ELEMENTS
315850
A firework gives out crimson coloured light. It contains a salt of
1 \(\mathrm{Ca}\)
2 \(\mathrm{Na}\)
3 \(\mathrm{Sr}\)
4 \(\mathrm{Ba}\)
Explanation:
Conceptual Questions
CHXI10:THE S-BLOCK ELEMENTS
315851
Calcium metal give which colour in the Bunsen burner flame
