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Which of the following statements is true?
- a)The atomic radius of Ga is less than B.
- b)The atomic radius of Ga is more than Al.
- c)The atomic radius of Ga is less than Al.
- d)The atomic radius of Ga is equal to Al
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of the following statements is true?a)The atomic radius of Ga is...
The correct statement is option 'c': The atomic radius of Ga (gallium) is less than Al (aluminum).
Explanation:
Atomic radius is defined as the distance from the nucleus to the outermost shell of an atom. It represents the size of an atom. The atomic radius generally increases as we move down a group in the periodic table and decreases as we move from left to right across a period.
1. Comparison between Ga and B (boron):
- Boron (B) is located to the left of gallium (Ga) in the periodic table.
- As we move from left to right across a period, the atomic radius generally decreases due to an increase in the effective nuclear charge (the attraction between the positively charged nucleus and the negatively charged electrons).
- Therefore, the atomic radius of Ga is larger than B. So, statement 'a' is false.
2. Comparison between Ga and Al:
- Aluminum (Al) is located to the left of gallium (Ga) in the periodic table.
- As we move from left to right across a period, the atomic radius generally decreases.
- Therefore, the atomic radius of Ga is less than Al. So, statement 'c' is true.
3. Comparison between Ga and Al:
- Aluminum (Al) is located to the left of gallium (Ga) in the periodic table.
- As we move down a group in the periodic table, the atomic radius generally increases.
- Therefore, the atomic radius of Ga is larger than Al. So, statement 'd' is false.
In conclusion, the correct statement is that the atomic radius of Ga is less than Al (option 'c').
Explanation:
Atomic radius is defined as the distance from the nucleus to the outermost shell of an atom. It represents the size of an atom. The atomic radius generally increases as we move down a group in the periodic table and decreases as we move from left to right across a period.
1. Comparison between Ga and B (boron):
- Boron (B) is located to the left of gallium (Ga) in the periodic table.
- As we move from left to right across a period, the atomic radius generally decreases due to an increase in the effective nuclear charge (the attraction between the positively charged nucleus and the negatively charged electrons).
- Therefore, the atomic radius of Ga is larger than B. So, statement 'a' is false.
2. Comparison between Ga and Al:
- Aluminum (Al) is located to the left of gallium (Ga) in the periodic table.
- As we move from left to right across a period, the atomic radius generally decreases.
- Therefore, the atomic radius of Ga is less than Al. So, statement 'c' is true.
3. Comparison between Ga and Al:
- Aluminum (Al) is located to the left of gallium (Ga) in the periodic table.
- As we move down a group in the periodic table, the atomic radius generally increases.
- Therefore, the atomic radius of Ga is larger than Al. So, statement 'd' is false.
In conclusion, the correct statement is that the atomic radius of Ga is less than Al (option 'c').
Community Answer
Which of the following statements is true?a)The atomic radius of Ga is...
As we go down the group atomic radius increases so yeah opt b is crct Ga have greater atomic radius than of Al
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Which of the following statements is true?a)The atomic radius of Ga is less than B.b)The atomic radius of Ga is more than Al.c)The atomic radius of Ga is less than Al.d)The atomic radius of Ga is equal to AlCorrect answer is option 'C'. Can you explain this answer?
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