Answer:
Option-A (XY)
Explanation:
In this problem one should focus on the number of valence electrons present in each atom. Remember that in lewis structure the dots on an atom always show the valence shell electrons. In given statement;
The,
X has one valence electron. It means that it can loose this single electron to attain the noble gas configuration i.e.
X° → X⁺ + 1e⁻
Similarly,
Y have seven valence shell electrons. Therefore, in order to complete the octet this atom will gain one electron i.e.
::Y:° + 1 e⁻ → Y⁻
Hence, we can conclude that X got stabilized by losing one electron and Y got stabilized by gaining one electron therefore, only one of each is required to form an ionic compound i.e.
<h3>
X⁺ + Y⁻ → XY</h3>
Answer:
1.52
Explanation:
speed of light through clear rock salt = speed of light in air (vacuum)/index of refraction
index of refraction of clear rock salt = speed of light in air (vacuum) / speed of light through clear rock salt
index of refraction of clear rock salt= 3.00 x 10^8 m/s / 1.98 × 10^8 m/s
index of refraction of clear rock salt= 3.00 x 10^8/1.98 × 10^8 ( the × 10^8 cancels out)
index of refraction of clear rock salt= 3.00/1.98
index of refraction of clear rock salt= 1.52
Answer:
The metal is named first, and the name is unchanged.
Explanation:
Took the test and got it correct. Have a nice day! :)
Answer:
True
Explanation:
Your welcome! :) Good luck!
Answer:
chemical change
Explanation:
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