1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Airida [17]
3 years ago
5

What is the electron configuration of the element in period 2 that has 5 valence electrons (valence electrons are the electrons

in the outermost shell) *
Chemistry
1 answer:
balu736 [363]3 years ago
8 0

Answer:

Nitrogen

Explanation:

N= is the symbol

electronic configuration

1s2 2s2 2p3

You might be interested in
A 32.5 g iron rod, initially at 22.4 ∘C, is submerged into an unknown mass of water at 63.0 ∘C, in an insulated container. The f
a_sh-v [17]

Answer:

m_{H_2O}=39.0g

Explanation:

Hello,

In this case, is possible to infer that the thermal equilibrium is governed by the following relationship:

\Delta H_{iron}=-\Delta H_{H_2O}\\m_{iron}Cp_{iron}(T_{eq}-T_{iron})=-m_{H_2O}Cp_{H_2O}(T_{eq}-T_{H_2O})

Thus, both iron's and water's heat capacities are: 0.444 and 4.18 J/g°C respectively, so one solves for the mass of water as shown below:

m_{H_2O}=\frac{m_{iron}Cp_{iron}(T_{eq}-T_{iron})}{-Cp_{H_2O}(T_{eq}-T_{H_2O}} \\\\m_{H_2O}=\frac{32.5g*0.444\frac{J}{g^0C}*(59.7-22.4)^0C}{-4.18\frac{J}{g^0C}*(59.7-63.0)^0C} \\\\m_{H_2O}=39.0g

Best regards.

8 0
3 years ago
The reaction for the decomposition of ammonia (NH3) can be written as shown. If a student starts with 21.7 g of ammonia, how man
Eddi Din [679]
3.88 grams will be released I believe
3 0
3 years ago
Read 2 more answers
What is the composition and percentage of the gases in earths atmosphere?
olasank [31]

Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

3 0
2 years ago
Read 2 more answers
The number of positive charges in the nucleus of an atom is equal to: its mass number its atomic number Avogadro's number its at
makkiz [27]

Answer:

its atomic number

Explanation:

the mass number/atomic mass is how many protons and neutrons are combined in an element. But, the atomic number is just protons.

6 0
3 years ago
When compounds form, what is one result for the atoms that bonded?
Montano1993 [528]

When compounds form, the atoms that bonded get a stable arrangement of electrons.

Compounds form because their atoms get a more stable arrangement than they had in the reactants.

A stable arrangement is a <em>complete octet</em> of eight electrons in the valence shell .

7 0
2 years ago
Read 2 more answers
Other questions:
  • The solubility of three compounds in water is shown in the table above. What best explains the observations shown in the table?
    8·2 answers
  • According to Moh's hardness scale, your fingernail would be rated as 2.5. Juan and Carol are trying to identify an unknown miner
    10·2 answers
  • The study of heat and heat changes is called:
    7·1 answer
  • Of the atoms listed below, which one will have at least one electron in its d orbital?
    9·1 answer
  • Which state of matter has the lowest amount of themeral energy?
    7·1 answer
  • Use the Rydberg Equation to calculate the energy in Joules of the transition between n = 7 and n = 3 for the hydrogen atom. Find
    7·1 answer
  • The names and chemical formulae of some chemical compounds are written in the first two columns of the table below. Each compoun
    11·1 answer
  • Calculate the mass percent (m/m) of a solution prepared by dissolving 51.56 g of NaCl in 164.2 g of H2O. Express your answer to
    10·1 answer
  • How can a large body of water, such as an ocean, influence climate?
    13·2 answers
  • ¿Por qué un trozo de sal común es frágil y se puede romper fácilmente cuando se le somete a una fuerza y no ocurre lo mismo con
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!