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3 years ago

The atomic number of an atom is based upon the number of

Chemistry

2 answers:

kolezko [41]3 years ago

7 0

The atomic number of an element is based on the number of protons in the atomic nuclei of its atoms.

AleksandrR [38]3 years ago

3 0

Answer:

hope it helps...

Explanation:

Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number.

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Describe in your own words, why a balloon, after it has been rubbed on a sweater, floats back towards the sweater when released.

MrRissso [65]

Explanation:

By rubbing the balloon on a sweater, you can transfer negative charges onto the surface of the balloon

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2 years ago

Balancing equations

Evgesh-ka [11]

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no 14) two mole of Na3PO4 and three mole of BaCL2 to get one mole of Ba3(PO4)2 and six mole of NaCl.
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4 years ago

mosquitoes get their food by sucking other animals blood, sometimes giving it disease. what type of symbiosis is this.

Gala2k [10]

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3 years ago

Read 2 more answers

The excessive demand of energy leads to......

dem82 [27]

Answer:

industrial activity

Explanation:

3 0

3 years ago

The half-life of radioactive substance is 2.5 minutes. what fraction of the origional radioactive remains after 10 mins

saul85 [17]

The answer is 1/16.

Half-life is the time required for the amount of a sample to half its value.
To calculate this, we will use the following formulas:
1. $(1/2)^{n} = x$ ,
where:
n - a number of half-lives
x - a remained fraction of a sample

2. $t_{1/2} = \frac{t}{n}$
where:
 $t_{1/2}$ - half-life
t - total time elapsed
n - a number of half-lives

So, we know:
t = 10 min
 $t_{1/2}$ = 2.5 min

We need:
n = ?
x = ?

We could first use the second equation to calculate n:
If:
$t_{1/2} = \frac{t}{n}$ ,
Then:
$n = \frac{t}{ t_{1/2} }$
⇒ $n = \frac{10 min}{2.5 min}$
⇒ $n=4$ 

Now we can use the first equation to calculate the remained fraction of the sample.
 $(1/2)^{n} = x$
⇒ $x=(1/2)^4$
⇒ $x= \frac{1}{16}$

3 0

3 years ago

The atomic number of an atom is based upon the number of​

The atomic number of an atom is based upon the number of