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USPshnik [31]
3 years ago
7

What is the number of protons and electrons in a neutral atom of Lithium?

Chemistry
1 answer:
nadya68 [22]3 years ago
3 0
If you look at the periodic table you will see the atomic number (the smaller number) which is 3. that identifies how many protons there are. since the lithium is neutral that means there’s a same amount of electrons.

therefore there’s 3 electrons and 3 protons

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An ionized helium atom has a mass of 6.6 × 10-27 kg and a speed of 5.3 × 105 m/s. It moves perpendicular to a 0.78-T magnetic fi
arsen [322]

Explanation:

In a magnetic field, the radius of the charged particle is as follows.

             r = \frac{mv}{qB}

where,   m = mass,      v = velocity

              q = charge,    B = magnetic field

Therefore, q will be calculated as follows.

         q = \frac{mv}{rB}

            = \frac{6.6 \times 10^{-27} \times 5.3 \times 10^{5}}{0.014 m \times 0.78 T}

            = \frac{34.98 \times 10^{-22}}{0.01092}

            = 3.2 \times 10^{-19} \times \frac{1.0 e}{1.6 \times 10^{-19}C}

            = +2e

Thus, we can conclude that the charge of the ionized atom is +2e.

5 0
3 years ago
Which layer of the sun is only seen during the height of a total solar eclipse? A. Photosphere B. Corona C. Convection zone D. c
alisha [4.7K]

Question:Which layer of the sun is only seen during the height of a total solar eclipse?

Answer: Corona

Explanation:During a total solar eclipse  parts of the Sun that we normally can't see become visible but during it we can see the corona

question answered by

(jacemorris04)

4 0
3 years ago
Read 2 more answers
How would an invasive species affect an ecosystem?
denis-greek [22]

Answer:

The invasive species would take over in the area and throw off the balance of the ecosystem.

Explanation:

Invasive species can harm both the natural resources in an ecosystem as well as threaten human use of these resources. An invasive species can be introduced to a new area via the ballast water of oceangoing ships, intentional and accidental releases of aquaculture species, aquarium specimens or bait, and other means.

Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats. This can result in huge economic impacts and fundamental disruptions of coastal and Great Lakes ecosystems.

Hope this helped!

3 0
3 years ago
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EastWind [94]

Answer: 8oz of water compared to 1 cup is balanced cuz the are same thing

Explanation:

4 0
3 years ago
How many moles are in 564 grams of copper
Paraphin [41]
No. of moles =mass given/mass acquired 

no. of moles =564÷64=8.81

therefore no. of moles =8.81m
7 0
3 years ago
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