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IrinaVladis [17]
3 years ago
11

In order to become a chemically stable ion, a neutral atom of sodium will _______.

Chemistry
2 answers:
solniwko [45]3 years ago
5 0
You can get anything
disa [49]3 years ago
5 0

Answer:

D. gain one electron

Explanation:

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If N gains 3 electrons from other atoms, why is it written N^-3 (with a -3)?
TiliK225 [7]

Answer:

Because number of electrons becomes greater than protons and atom form anion.

Explanation:

In order to understand this problem we must know about anion and cation.

Anion:

When an atom gain the electrons anion is formed. The negative sign shows that atom gain electron because number of electron are greater than protons or we can say that negative charge becomes greater than positive charge.

Cation:

When atom lose electron cation is formed. The atom thus have positive charge because number of positive charge i.e protons are increased are greater than negative charge or electron.

In given problem N gain three electrons which means negative charge becomes greater that's why the extra electron gained by atoms are written as -3.

3 0
4 years ago
High concentrations of carbon monoxide CO can cause coma and possible death. The time required for a person to reach a COHb leve
prohojiy [21]

Answer:

The exposure time that equals 750 is 3.4 hr

Explanation:

The given formula is:

[tex]T=.0002*x^{2} -.316*x+127.9[/tex]

In the formula:

T= exposure time

x= carbon monoxide present in ppm

So, to calculate the exposure time when carbon monoxide is 750ppm, you should replace the "x" by 750.

[tex]T=.0002*750^{2} -.316*750+127.9[/tex]

T=3.4hr

8 0
3 years ago
How does the energy of an electron change when the electron moves closer to the nucleus?
tankabanditka [31]
It increases. B.

Close to the nucleus are high energy levels, because of the pull of the nucleus.  But farther away from the nucleus, the electrons there are of low energy level.
5 0
4 years ago
Hurry please im being timed. i will give brainliest!!!!
Monica [59]
Answer is C, continents were once all joined together
3 0
3 years ago
Read 2 more answers
Why then is a diamond extremely hard and sparkly and Graphite is soft and gray and dull ?
kotykmax [81]
It depends on the form it takes and how its formed. If raw carbon is in extreme pressure it can make a diamond. Graphite, however is made in a different way.
7 0
3 years ago
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