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kipiarov [429]
3 years ago
8

Describe the structure of the beryllium atom. In your answer make reference to the number of sub-atomic particles and where they

are found in the atom.Immersive Reader
(5 Points)
Chemistry
1 answer:
dusya [7]3 years ago
8 0

Answer:

The nucleus consists of 4 protons (red) and 5 neutrons (orange). Four electrons (white) occupy available electron shells (rings). The stability of an element's outer (valence) electrons determines its chemical and physical properties. Subatomic particles are particles that are smaller than the atom. Protons, neutrons, and electrons are the three main subatomic particles found in an atom. Protons have a positive (+) charge. An easy way to remember this is to remember that both proton and positive start with the letter "P."

hope this helped:)

brainliest?

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Vika [28.1K]
I believe the medulla is the answer.
3 0
3 years ago
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What is the percent by volume of ethanol (C2H60, or ethyl alcohol) in the final solution when 90 mL of ethanol is diluted to a v
r-ruslan [8.4K]

Answer:

16.0%.

Explanation:

Volume percent of a substance is the ratio of the substance volume to the solution volume multiplied by 100.

V % of ethanol = (volume of ethanol / volume of the solution) x 100.

volume of ethanol = 90.0 mL, volume of the solution = 550.0 mL.

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8 0
3 years ago
Mannose (C6H12O6) is a simple sugar found in many fruits and vegetables. How many oxygen atoms are in 7. 15 x 10^23 molecules of
maxonik [38]

Number of oxygen atoms present in 7.15×10²³ molecules of mannose are 1.92≈2 a m u .

<h3>What is mannose sugar?</h3>

D-mannose is a simple sugar found in many fruits. It is related to glucose. In some cells it occurs naturally in the body.

Mannose is a six-carbon sugar found in a variety of fruits and vegetables. This sugar is not found free in foods. It is a part of polysaccharide chains attached to a variety of proteins.

To calculate number of oxygen atoms present in 7.15×10²³  molecules of mannose-

Since,

1 molecule of oxygen=2.303×10²³ no. of atoms

Here,  total number of molecules of oxygen is 6.

Therefore, 6 molecule of oxygen =6×2.303×10²³÷7.15×10²³

=1.92≈2 a m u .

Hence, the total number of oxygen atoms in 7.15×10²³ molecules of mannose is 1.92 ≈2 a m u.

Learn more about mannose sugar, here:

brainly.com/question/7008130

#SPJ4

6 0
2 years ago
.Name a letter never used in any element symbol?​
marta [7]

Answer:

Q

Explanation:

Q does not appear in any official element names. Temporary element names, such as ununquadium, contain this letter.

8 0
3 years ago
1 An atom has 24 protons, 22 electrons, and 28 neutrons. What is the atomic number of the atom?
Nataly_w [17]

Answer:

24

Explanation:

3 0
3 years ago
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