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pickupchik [31]
3 years ago
13

How many protons are in the nucleus of an atom with an atomic number of 15

Chemistry
2 answers:
STatiana [176]3 years ago
6 0

Answer:

There are 15 protons

Explanation:

The atomic number equals to the number of protons

vodomira [7]3 years ago
4 0

Answer:

In the given case, the atomic number of the given atom is 15, hence its nucleus contains 15 protons. The number of protons and electrons are the same in atom and that is what keeps it neutral. In the second case, the atomic number is 20. Hence, the atom will contain a total of 20 protons in its nucleus.

Explanation:

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How does energy from the some travel to earth
Finger [1]

Answer:

Bye the way, u welcome ;)

In heat transfer by radiation, energy is carried by electromagnetic waves from a starting point to the space surrounding it and does not involve contact with matter. The other forms of heat transfer cannot produce any of the energy that arrives to Earth through the vacuum of space.

8 0
3 years ago
5.0x10^4mg to kg and answer in scientific notation
Elis [28]
5.0x10^1 kg is the correct answer
3 0
4 years ago
How many molecules are in 1.00 gram of water, h2o?
arsen [322]
N(H₂O)=1g÷18g/mol=0,055mol
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7 0
3 years ago
A metal ion (X) with a charge of 4+ is attracted to non metal ion (Z) with a charge of 3-. Which of these formulas represents th
pav-90 [236]

Answer:  X_3Z_4

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here metal X is having an oxidation state of +4 called as X^{4+} cation and Z^{3-} is an anion with oxidation state of -3. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral X_3Z_4

X_3Z_4 is the formula of the resulting compound.

6 0
3 years ago
If a force of 1.4N is applied to a block with a mass of 7kg, what is the acceleration of the block in meters per second squared?
Anton [14]

Answer:

<h2>0.2 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{1.4}{7} =  \frac{1}{5}   \\

We have the final answer as

<h3>0.2 m/s²</h3>

Hope this helps you

5 0
3 years ago
Read 2 more answers
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