The electron configuration of nitrogen (N)

Answers

Answer 1
Answer: nitrogen atomic no.=7
electron=7its electronic configuration =1s2 2s2 2p3
Answer 2
Answer:

Answer:

2,5 or 7

Explanation:


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Based on your findings, which theory about alien thickness seems most valid or most accurate?

Answers

Answer:

C.) Alien thickness is mainly affected by temperature. The greater thickness at lower temperatures may be used as a way to stay warmer in colder weather.

Explanation:

Environmental systems.

Well aliens are like mysteries on Sci-Fi. Aliens aren't humans or just beings that are different from us. When you're saying the thickness, I am assuming about the body of the alien is full of hard and rusty skin that is not like ours. 
Hope this helped!!! >.< If not I am sorry....just didn't understand what you were getting to at. I am sorry.

What is the concentration of a solution that has a volume of 2.5L and contains exactly 2.125 moles of calcium phosphate

Answers

Answer:

0.85 mol/L.

Explanation:

  • Molarity is defined as the no. of moles of solute dissolved in a liter of the solution.

M = (no. of moles of solute)/(Volume of the solution (L))

no. of moles of calcium phosphate = 2.125 mol.

Volume of the solution = 2.5 L.

∴ M of calcium phosphate = (2.125 mol)/(2.5 L) = 0.85 mol/L.

There are seven types of crystals. Which of these is not one of the seven?a. triclinic
b. tetraclinic
c. tetragonal
d. orthorhombic

Answers

Answer:

B- Tetraclinic

Explanation:

According to the similarity of their symmetry elements, thirty-two classes are grouped into seven crystal systems: isometric (cubic) system, tetragonal system, hexagonal system, trigonal system (subdivision of the hexagonal system, second North American school of crystallography). , called rhombohedral hexagonal system), orthorhombic system, monoclinic system and triclinic system. Applying the symmetry operations on all possible reticular planes (potential crystal faces) in the seven crystalline systems, according to the 32 symmetry classes, only 48 geometric shapes are possible to be obtained.

Tetraclinic is not one of the seven types of crystal.

Seven types of crystals

The seven types of crystal are triclinic, monoclinic, orthorhombic, tetragonal, trigonal, hexagonal, and cubic while on the other hand, triclinic system is one of the structural categories in which crystalline solids can be assigned.

So we can conclude that Tetraclinic is not one of the seven types of crystal.

Learn more about crystals here: brainly.com/question/1325088

This is the metric unit for measuring volume

Answers

Cubic metre is the metric unit for measuring volume. The cubic centimetre has a particular nomenclature called a millilitre.

The 3-dimensional space that is occupied by matter or surrounded by a surface is measured in volume, which is expressed in cubic units. A derived unit called the cubic metre serves as the SI unit of volume.

A unique designation for the cubic decimeter is the litre. To reduce the chance of confusion between the lowercase letter "ell" (l) and the number one (1), the symbol for the litre is an uppercase letter "ell". The litre cannot be represented by the script letter l (l).

To learn more about metric unit , click here.

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describe the process that ice on mount everest goes through when being heated from 10 degree fahrenheit to 305 degree kelvin. then explain how the energy requiresment change at different steps of the heating curve. and what are the energy transfers that happen in the ice on mount everest everest?

Answers

I think the ice is warmed from 10 degrees Fahrenheit to 32 degrees Fahrenheit. The ice then melts (I believe 333kj/kg K) and then it warms up to 305 K. For that this occurs the heat capacity of the water is 4.19 kj/kg K.

A sample of nitric acid contains both H3O ions and NO3 ions. This sample has a pHvalue of 1.

Write a name of the positive ion present in this sample.

Answers

Answer : The name of positive ion present in this sample is, hydronium ion.

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.

Ion : An ion is formed when an atom looses or gains electron.

When an atom looses electrons, it will form a positive ion known as cation.

When an atom gains electrons, it will form a negative ion known as anion.

As per question, hydronium ion or hydrogen ion is having an oxidation state of +1 called as H_3O^(+) or H^+ cation and nitrate ion NO_3^(-) is an anion with oxidation state of -1.

Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral HNO_3.

Hence, the name of positive ion present in this sample is, hydronium ion.