What is an isotope and what is atomic structure?

Chemistry

1 answer:

Anarel [89]3 years ago

8 0

Answer:

Isotopes are atoms with the same number of protons, but different numbers of neutrons.

Explanation:

Ex.

Ne 20/10

Ne 21/10

Ne 22/10

*the number of protons in an atom must stay the same or the element itself will change drastically

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H₂SO₄ is considered to be

uranmaximum [27]

Answer:

sulfuric acid

Explanation:

a strong acid that soluble in water.

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3 years ago

Which atom is most likely to attract electrons in a bond? A) K B) Na C) S D) Se

jeka57 [31]

C) S

Because of the trends of electronegativity. Increases across a period and decreases down a group.

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3 years ago

What is the energy of a photon that has a wavelength of 8.6x10^3nm?

aniked [119]

Answer:

The energy of the photon is $2.311\times 10^{-20}\ J$ .

Explanation:

Given:

The wavelength of the photon is given as:

$\lambda =8.6\times 10^3\ nm\\1\ nm = 10^{-9}\ m\\\therefore \lambda = 8.6\times 10^{3}\times 10^{-9}=8.6\times 10^{-6}\ m$

The energy of a photon in terms of its wavelength is given as:

$E_p=\frac{hc}{\lambda}\\Where,\ h\rightarrow \textrm{Planck's constant}=6.626\times 10^{-34}\ Js\\c\rightarrow \textrm{velocity of light}=3\times 10^8\ m/s$

Plug in all the given values and calculate energy of the photon, $E_p$ . This gives,

$E_p=\frac{6.626\times 10^{-34} \times 3\times 10^8}{8.6\times 10^{-6}}\\E_p=\frac{19.878\times 10^{-26}}{8.6\times 10^{-6}}\\E_p=2.311\times 10^{-20}\ J$