A molecule with formula AX3E uses SP3 to form its bonds.
Where A is the metal
X is any halogen which is bonded to it.
E is the lone pair
∴ A requires four electron pairs and tetrahedral.
Where tetrahedral symmetry is SP3 hybridized
Answer:
When there remains one-quarter of the sample, the age of the sample is 10940 years
Explanation:
<u>Step 1:</u> Data given
The half-life of C-14 is 5470 years.
The half- life time is the time required for a quantity to reduce to half of its initial value.
This means after 5470 years there remains half of the C-14 sample.
To remain a quarter of the sample, another cycle of 5470 years is required.
This means 2 half-lives should have passed to remain a quarter of the sample.
<u>Step 2</u>: Calculate it's age
t/(t/1/2) = 2
⇒ with t = the age (or time) of the sample
⇒ with t(1/2) = the half-life time of the sample = 5470 years
⇒ with 2 = the number of halvf- lives passed
t/5470 = 2
t = 2*5470 = 10940 years
When there remains one-quarter of the sample, the age of the sample is 10940 years
Electrical--> chemical --> thermal --> mechanical
Aerosol:
Aerosol is a colloidal dispersion of liquid or solid in gas.
Thus a colloidal liquid suspended in a gas is called an aero sol is true
Aerosol is an example of colloidal dispersion and when a beam of light is fall on colloids then light is scattered means light is spread in all direction. It is a characteristic property of collides.
Answer is c photosynthesis
