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An element with atomic no 3 combines with another element with atomic number 17, What would be the formula of the compound?
- a)BeCl2
- b)LiCl
- c)NaCl
- d)Lif
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
An element with atomic no 3 combines with another element with atomic ...
An element with atomic no 3 has electronic configuration 2,1 i.e. it can lose one electron readily to complete its duplet.
The element with atomic no 17 has electronic configuration 2,8,7 and is ready to accept one electron to complete its octet.
So, both of them with valency 1 combine and the formula is LiCl.
The element with atomic no 17 has electronic configuration 2,8,7 and is ready to accept one electron to complete its octet.
So, both of them with valency 1 combine and the formula is LiCl.
Most Upvoted Answer
An element with atomic no 3 combines with another element with atomic ...
Understanding Atomic Numbers
The atomic number of an element indicates the number of protons in its nucleus and determines its position in the periodic table.
- Element with atomic number 3: Lithium (Li)
- Element with atomic number 17: Chlorine (Cl)
Combining Elements
When elements combine to form a compound, they do so by transferring or sharing electrons to achieve stability, often in the form of ionic or covalent bonds.
- Lithium (Li) is an alkali metal, which tends to lose one electron to achieve a stable electronic configuration.
- Chlorine (Cl), a halogen, typically gains one electron to complete its outer shell.
Determining the Compound Formula
To determine the formula of the compound formed between lithium and chlorine:
- Lithium loses 1 electron (Li → Li+).
- Chlorine gains 1 electron (Cl + e- → Cl-).
Since one lithium ion (Li+) combines with one chloride ion (Cl-), the ratio is 1:1.
Final Compound Formula
The compound formed is lithium chloride, represented by the formula:
- LiCl
Option Analysis
Now, let's analyze the provided options:
- a) BeCl2: This is beryllium chloride, not relevant here.
- b) LiCl: Correct, as explained above.
- c) NaCl: This is sodium chloride, involving sodium (Na), not lithium.
- d) Lif: This is incorrect; it seems to be a typographical error.
Conclusion
The correct answer is option 'B' (LiCl), as lithium combines with chlorine to form lithium chloride through the transfer of electrons.
The atomic number of an element indicates the number of protons in its nucleus and determines its position in the periodic table.
- Element with atomic number 3: Lithium (Li)
- Element with atomic number 17: Chlorine (Cl)
Combining Elements
When elements combine to form a compound, they do so by transferring or sharing electrons to achieve stability, often in the form of ionic or covalent bonds.
- Lithium (Li) is an alkali metal, which tends to lose one electron to achieve a stable electronic configuration.
- Chlorine (Cl), a halogen, typically gains one electron to complete its outer shell.
Determining the Compound Formula
To determine the formula of the compound formed between lithium and chlorine:
- Lithium loses 1 electron (Li → Li+).
- Chlorine gains 1 electron (Cl + e- → Cl-).
Since one lithium ion (Li+) combines with one chloride ion (Cl-), the ratio is 1:1.
Final Compound Formula
The compound formed is lithium chloride, represented by the formula:
- LiCl
Option Analysis
Now, let's analyze the provided options:
- a) BeCl2: This is beryllium chloride, not relevant here.
- b) LiCl: Correct, as explained above.
- c) NaCl: This is sodium chloride, involving sodium (Na), not lithium.
- d) Lif: This is incorrect; it seems to be a typographical error.
Conclusion
The correct answer is option 'B' (LiCl), as lithium combines with chlorine to form lithium chloride through the transfer of electrons.
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An element with atomic no 3 combines with another element with atomic number 17, What would be the formulaof the compound?a)BeCl2b)LiClc)NaCld)LifCorrect answer is option 'B'. Can you explain this answer?
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