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3 years ago

1. How many protons and electrons are present in a vandium atom

Chemistry

2 answers:

sveticcg [70]3 years ago

8 0

Answer:

There is 23 protons and 23 electrons in a vandium atom!

Hope this helps :)

Explanation:

Arada [10]3 years ago

6 0

Answer:

33 protons and 36 electrons

Explanation:

I saw it in Google and it said me my teacher

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What word is used synonymously with the word "base"

Inessa [10]

Answer:

foundation/bottom

Explanation:

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3 years ago

What is the wavenumber of the radiation emitted when a hydrogen

LUCKY_DIMON [66]

Answer: Wavenumber of the radiation emitted is $0.08\times 10^{8}m^{-1}$

Explanation:

The relationship between wavelength and energy of the wave follows the equation:

$E=\frac{hc}{\lambda}$

where,

E = energy of the radiation = $1.634\times 10^{-18}J$

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

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

$\lambda$ = wavelength of radiation = ?

Putting values in above equation, we get:

$1.634\times 10^{-18}J=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{\lambda}\\\\\lambda=12.16\times 10^{-8}m$

$\bar {\nu}=\frac{1}{\lambda}=\frac{1}{12.16\times 10^{-8}}=0.08\times 10^{8}m^{-1}$

Thus wavenumber of the radiation emitted is $0.08\times 10^{8}m^{-1}$

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4 years ago

When the sun shines and heats something, that energy is called-

vodomira [7]

Answer:

Solar energy.

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3 years ago

Read 2 more answers

3. Indicate the type of reaction represented by each equation:

BartSMP [9]

3. Is double replacement

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3 years ago

1: The atomic number of an atom is equivalent to which of the following?

IrinaVladis [17]

I think the correct answer among the choices presented above is option C. The <span>atomic number of an atom is equivalent to the number of protons in the nucleus. For a neutral atom, it is also the number of electrons since in a neutral atom protons and electrons are present in equal number.</span>

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3 years ago