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Fed [463]
3 years ago
6

Atoms contain three types of particles. in the nucleus there are positively charged protons as well as neutrons which have no ch

arge. orbiting the nucleus are negatively charged nucleus . previous next
Chemistry
1 answer:
LiRa [457]3 years ago
5 0
<span>This is a false statement. The negatively charged particles that orbit the nucleus are called electrons. They are what balance out the protons, giving the element an overall neutral charge. They are also the parts of the atom that bond to other elements, which lead to molecules and other compounds.</span>
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3 years ago
Which chemical element represents the most abundant “atoms of an element” found in air?
zalisa [80]

Answer:

The order of elements by volume-fraction (which is approximately molecular mole-fraction) in the atmosphere is nitrogen (78.1%), oxygen (20.9%), argon (0.96%), followed by (in uncertain order) carbon and hydrogen because water vapor and carbon dioxide, which represent most of these two elements in the air, are variable.

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3 years ago
Selenium (Se) has 30 protons and 20 neutrons in each atom, therefore its atomic
allochka39001 [22]

Answer:

30, 50

Explanation:

Hello,

In this since an element's atomic number is equal to the number of protons in its atom, we can infer that selenium's atomic number is 30. Moreover, due to the fact the the neutrons are equal to the atomic mass minus the atomic number or the number of protons, by knowing the number of neutrons we compute the atomic as follows:

neutrons=mass-protons\\\\mass=neutrons+protons\\\\mass=30+20\\\\mass=50a.m.u

Thus, answer is 30, 50.

Best regards.

8 0
3 years ago
34 grams of carbon react with an unlimited amount of H2O. The reaction is: C + H2O → CO + H2 What is the ending substance?
katovenus [111]
H2c+o
hope this helps :0

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3 years ago
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