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UNO [17]
3 years ago
13

Which best describes the three general groups of elements?

Chemistry
1 answer:
Alex73 [517]3 years ago
3 0

Answer:

D

Explanation:

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Which of these is something whose construction MOST LIKELY would be determined by the government? A) An airport B) A golf club C
Amiraneli [1.4K]

Answer:

I would say an airport

Explanation:

why because it is ran by the government

8 0
3 years ago
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All synthetic elements...
ki77a [65]
In chemistry, a synthetic element is a chemical element that does not occur naturally on Earth, and can only be created artificially. So far, 24 synthetic elements have been created (those with atomic numbers 95–118). All are unstable, decaying with half-lives ranging from 15.6 million years to a few hundred microseconds.

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4 0
4 years ago
How many electrons in an atom can share the quantum numbers n=3, l =2 and m subscript l = 2? (1 point)
Rama09 [41]

Answer : The number of electrons in an atom is, 2 electrons

Explanation :

As we know that there are four quantum numbers which are principle quantum number, azimuthal quantum number, magnetic quantum number and spin magnetic quantum number.

The Principle quantum number, n = 3. That means the electron present in the third energy level.

The Azimuthal quantum number, l = 2. That means the electron present in the d sub-shell.

The magnetic quantum number, m_l=2. That means it shows the 2 electrons present in one of the five 3d orbitals.

Hence, the number of electrons in an atom is, 2 electrons



8 0
3 years ago
Two opposing reaction (a + b c+D) occurring simultaneously
tekilochka [14]

Answer:

redox reaction

Explanation:

it's the only reaction occurs simultaneously, reduction and oxidation occur at the same time

5 0
3 years ago
Describe the difference between red light and blue light. Describe the difference between red light and blue light. 700 nm corre
fiasKO [112]

Answer:700 nm corresponded to light in the red range and 450 nm corresponded to light in the blue range.

Explanation:The wavelengths of the visible spectrum are usually between 400 nm and 700 nmn with the the rays of red light having a longer wavelength, and blue light rays having shorter wavelengths. The red light has a low frequency of about 405–480 THz and , blue light has a higher frequency in the range of 620–680 THz.  This is due to the inverse relationship between wavelength and frequency which also occurs betwwn  wavelength and energy of light rays with the  red light having less photon energy of about  1.65–2.00 eV and the  blue light with high energy photons of about 2.64–2.75 eV.

Red light can be employed in the photosynthesis in plants as it helps in formation of flowers and the production of fruits. Blue light also is important in the production of chlorophyll and can cause a healthy and strong stem and leaves in excess exposure.

6 0
3 years ago
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