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WARRIOR [948]
3 years ago
13

Select the correct answer. Which subatomic particle is electrically neutral and found in the nucleus of an atom? A. proton B. ne

utron C. electron D. orbital E.
Chemistry
1 answer:
rodikova [14]3 years ago
8 0

<u>Answer:</u> The correct answer is Option B.

<u>Explanation:</u>

There are 3 subatomic orbitals which are present in an atom:

1. Protons: These sub-atomic particles are positively charged and are found in the nucleus.

2. Electrons: These sub-atomic particles are negatively charged and are found in the orbitals around the nucleus.

3. Neutrons: These sub-atomic particles carry no charge and are known as electrically neutral species. These particles are found in the nucleus.

From the above information, the answer to this question is Option B.

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2 years ago
To the nearest whole number how many moles are in 130 g sample of calcium metal?
lesantik [10]
To convert grams to moles, we need the molar mass of the element or compound. remember you can determine the molar mass of a molecule by adding the atomic mass of each atom from the periodic table.

molar mass of Na= 23.0 g/ mol

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6 0
3 years ago
The total number of sodium atoms in 46.0 grams of sodium<br> is
marusya05 [52]
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3 0
3 years ago
Suggest the methods used to separate the following:
MArishka [77]

Answer:

Separation method for various ingredients are

1. Paneer from curdled milk.  - Filtration

2. Chalk powder from water.  - Filtration

3. Sand from salt solution. - Evaporation

4. Saw dust from water.  - Skim off, sieve or filter

5. Tea leaves from brew. - Filtration.

Explanation:

By the help of a muslin cloth the paneer is separated from the curdled milk, the process is called as the filtration. The paneer will remain in the cloth and curdled milk will be removed. Separation of chalk powder from water is very easy by the process of filtration, after the filtration the chalk powder retentate and the filtrate obtained is the water in absence of chalk.  Salt and sand water separation can be done with the help of evaporation. Separation of the saw dust from water takes place by the method of sieving or sedimentation. The tea leaves are separated from brew by filtration.

3 0
3 years ago
What must happen for an electron to return to its original energy level from a higher energy level?
attashe74 [19]

An electron should emit energy to return to its original energy level from a higher energy level.

<h3>What is an energy level?</h3>

Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found.

The electron absorbs the energy and jumps to a higher energy level. In the reverse process, emission, the electron returns to the ground state by releasing the extra energy that is absorbed.

Hence, an electron should emit energy to return to its original energy level from a higher energy level.

Learn more about the energy level here:

brainly.com/question/17396431

#SPJ1

3 0
2 years ago
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