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Viktor [21]
3 years ago
8

What is the electron structure of a sodium atom?

Chemistry
2 answers:
CaHeK987 [17]3 years ago
8 0

There are 11 electrons in Sodium ( find this on the periodic table).

Then you need to arrange the electrons in the orbitals around the nucleus.

The structure would be written as A. 1s^22s^22p^63s^1

nordsb [41]3 years ago
7 0

Answer:

1s22s22p63s1 is the electronic configuration of sodium.

Explanation:

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Aluminum hydroxide + nitric acid ➡ aluminum nitrate + water
m_a_m_a [10]

Answer:

Chemical equation:

HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + H₂O

Explanation:

Chemical equation:

HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + H₂O

Balanced chemical equation:

3HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + 3H₂O

Ionic equation:

3H⁺ + 3NO⁻₃(aq) + Al(OH)₃(s)   →  Al³⁺(aq) + 3NO₃⁻¹(aq) + 3H₂O(l)

Net ionic equation:

Al(OH)₃(s)  +  3H⁺(aq)     →  Al³⁺(aq) +  3H₂O(l)

The NO⁻₃ are spectator ions that's why these are not written in net ionic equation. The water can not be splitted into ions because it is present in liquid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.  

4 0
3 years ago
The picture below is a great example of __________ biodiversity.
ki77a [65]

Answer:

number three is the answer moderate

4 0
3 years ago
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Which of the following would happen if Earth's moon were half the size that it is now? O The oceans' tidal variations would be s
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Answer: A. The oceans‘ tidal would be smaller because the moon would exert less gravitational pull on earths oceans.

Explanation:

i got it right :)

3 0
3 years ago
In which sample are the particles arranged in a regular geometric pattern?
andrew11 [14]
There is no picture hunny. Please add a picture please boo.
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The table shows the students data from an investigation about a plant growth and five plants of the same type what is the best w
NARA [144]

Answer:

This question is incomplete

Explanation:

The question is incomplete because of the absence of the table but since the question says there are data from an investigation about a plant growth and five other plants (making six) of the same type, the best way to display this type of data for analyst is to use the grouped bar chart. <u>The grouped bar chart will display the data obtained (from an investigation on plant growth) from different students on each of the six plants (of the the same type)</u>.

Colours are usually used to identify the bars (of a group) or could be used to separate the group from other groups but in this case, colours are better used to identify the bars of a group.

8 0
4 years ago
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