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3 years ago

13

Right ground state electron configuration for these ions which play important roles and biochemical process in our bodies. (use

a noble gas core abbreviation.)
a)Ca^2+ i got [Ar] for the answer for a is that right

b) Fe^2+

c)Cu^2+

d)Zn^2+

1 answer:

lesya692 [45]3 years ago

3 0

I think the answer is d.

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If a laser light is compose of photons each with an energy of 4.58 × 10−19 J, what is the photon energy of this light in units o

kap26 [50]

Answer : The photon energy of this light in units of nanometers, (nm) is, $4.34\times 10^{-2}nm$

Solution :

Formula used :

$E=\frac{h\times c}{\lambda}$

where,

E = energy of photon = $4.58\times 10^{-19}J$

h = Planck's constant = $6.626\times 10^{-34}Js$

c = speed of light = $3\times 10^8m/s$

$\lambda$ = wavelength = ?

Now put all the given values in the above formula, we get:

$4.58\times 10^{-19}J=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{\lambda}$

$\lambda=4.3017\times 10^{-7}m=434.017\times 10^{-9}m=434.017nm=4.34\times 10^{-2}nm$

conversion used : $(1nm=1\times 10^{-9}m)$

Therefore, the photon energy of this light in units of nanometers, (nm) is, $4.34\times 10^{-2}nm$

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3 years ago

Question 1 of 30

Ksivusya [100]

The answer will be A

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3 years ago

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Identify the highest energy molecular process that occurs when a molecule absorbs a microwave photon.

ElenaW [278]

The question is incomplete, the complete question is;

Identify the highest energy molecular process that occurs when a molecule absorbs a microwave photon

a) electronic excitation

b) bond breakage

c) molecular vibration

d) molecular rotation

Answer:

molecular rotation

Explanation:

Microwaves are part of the electromagnetic spectrum. They are lower energy, lower frequency radiation.

When molecules absorb infrared radiation, they transition between the rotational states of the molecule.

Hence, the highest energy molecular process that occurs when a molecule absorbs a microwave photon is molecular rotation.

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Electric and magnetic fields do not affect xrays as they only affect charged particles and xrays have no charge

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