Among the first ten elements, lithium (Li) and beryllium (Be) are metals. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Among the first ten elements, lithium (Li) and beryllium (Be) are metals.
Both helium (He) and neon (Ne) have filled outermost shells. Helium has a duplet in its K shell, while neon has an octet in its L shell. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Both helium (He) and neon (Ne) have filled outermost shells. Helium has a duplet
in its K shell, while neon has an octet in its L shell.
Yes. The atoms of all the three elements lithium, sodium, and potassium have one electron in their outermost shells. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Yes. The atoms of all the three elements lithium, sodium, and potassium have one
electron in their outermost shells.
Magnesium (Mg) and calcium (Ca) have two electrons in their outermost shells. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Magnesium (Mg) and calcium (Ca) have two electrons in their outermost shells.
Calcium (Ca) and strontium (Sr) are expected to show chemical reactions similar to magnesium (Mg). This is because the number of valence electrons (2) is same in all these three elements. And since chemical properties are due to valence electrons, they show same chemical reactions. For more answersRead more
Calcium (Ca) and strontium (Sr) are expected to show chemical reactions similar to magnesium (Mg). This is because the number of valence electrons (2) is same in all these three elements. And since chemical properties are due to valence electrons, they show same chemical reactions.
In the Modern Periodic Table, which are the metals among the first ten elements?
Among the first ten elements, lithium (Li) and beryllium (Be) are metals. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Among the first ten elements, lithium (Li) and beryllium (Be) are metals.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Helium is an unreactive gas and neon is a gas of extremely low reactivity. What, if anything, do their atoms have in common?
Both helium (He) and neon (Ne) have filled outermost shells. Helium has a duplet in its K shell, while neon has an octet in its L shell. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Both helium (He) and neon (Ne) have filled outermost shells. Helium has a duplet
in its K shell, while neon has an octet in its L shell.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?
Yes. The atoms of all the three elements lithium, sodium, and potassium have one electron in their outermost shells. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Yes. The atoms of all the three elements lithium, sodium, and potassium have one
electron in their outermost shells.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Name two elements that have two electrons in their outermost shells.
Magnesium (Mg) and calcium (Ca) have two electrons in their outermost shells. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Magnesium (Mg) and calcium (Ca) have two electrons in their outermost shells.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/
Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
Calcium (Ca) and strontium (Sr) are expected to show chemical reactions similar to magnesium (Mg). This is because the number of valence electrons (2) is same in all these three elements. And since chemical properties are due to valence electrons, they show same chemical reactions. For more answersRead more
Calcium (Ca) and strontium (Sr) are expected to show chemical reactions similar to magnesium (Mg). This is because the number of valence electrons (2) is same in all these three elements. And since chemical properties are due to valence electrons, they show same chemical reactions.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-5/