<em>Displacement reactions</em>
Answer:
Harmony is correct, because Mendeleev’s model made predictions that came true.
Explanation:
Mendeleev published periodic table.
Mendeleev also arranged the elements known at the time in order of relative atomic mass, but he did some other things that made his table much more successful.
Our answer is : Harmony is correct, because Mendeleev’s model made predictions that came true.
These answers dont make sense
1. the 2s2 orbital will give one of its electrons to the 2p5 orbital so the configuration would be 1s22s12p6 (2s1 is half filled and 2p6 is completely filled which is a much more stable configuration)
2. Neon does not need to ionize it is a noble gas
Answer:
λ = 0.85×10³⁰ m
Explanation:
Given data:
Wavelength of radiation = ?
Frequency of radiation = 3.52×10⁻²² Hz
Solution:
Formula:
c = f × λ
c = speed of wave = 3×10⁸ m/s
by putting values,
3×10⁸ m/s = 3.52×10⁻²² Hz × λ
λ = 3×10⁸ m/s / 3.52×10⁻²² s⁻¹
λ = 0.85×10³⁰ m
