The one on the left is pure because it is made out of one single material. The one on the right is a mixture because it is made out of multiple materials
IN THIS ORDER: nucleon, neutrons, element, different, isotopes, industrial
hope this helps!
We have to know which of the given statement is not true of carbon.
Not true statement of carbon is - it forms strong ionic bonds.
It can not form ionic bond. to produce ionic bond, carbon has to be converted into either C⁴⁺ or C⁴⁻.
The electronic configuration of C-atom is 1s²2s²2p⁴.
To form C⁴⁺ cation, four electrons must be removed from outermost shell of carbon atom which requires huge energy to supply.
To form C⁴⁻ anion, four electrons must be added to outermost shell of carbon atom which is not possible as outermost shell of C-atom does not have 2d orbital to accommodate extra electrons.
Answer:
E = 3.6×10⁻¹⁹ J
Explanation:
Given data:
Wavelength = 550 nm (550 ×10⁻⁹ nm)
Energy of wave = ?
Solution:
Formula:
E = h c/λ
c = 3×10⁸ m/s
h = 6.63×10⁻³⁴ Js
Now we will put the values in formula.
E = 6.63×10⁻³⁴ Js × 3×10⁸ m/s /550 ×10⁻⁹ nm
E = 19.89×10⁻²⁶ J.m /550 ×10⁻⁹ nm
E = 0.036×10⁻¹⁷ J
E = 3.6×10⁻¹⁹ J
Answer:
A is correct option you can go for it
