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
Marianna [84]
3 years ago
7

The element with 8 electrons in its 3d sublevel is a. O. b. Ne. c. Ar. d. Ni.

Chemistry
2 answers:
Lana71 [14]3 years ago
7 0

NI nickel atomic number 28 i took the test

Evgesh-ka [11]3 years ago
5 0

The element with 8 electrons in its 3d sublevel is Ni, Nickel. The answer is letter D. The rest of the choices do not answer the question above. 

You might be interested in
The zinc within a copper-plated penny will dissolve in hydrochloric acid if the copper coating is filed down in several spots (s
Mrac [35]

Answer:

Mass of hydrogen gas evolved is 0.0749 grams.

Explanation:

Total pressure of the gases = p = 758 mmHg

Vapor pressure of water = 23.78 mmHg

Pressure of hydrogen gas ,P =  p - 23.78 mmHg = 758 mmHg - 23.78 mmHg

P = 734.22 mmHg = \frac{734.22}{760} atm=0.966 atm

Temperature  of of hydrogen gas ,T= 25°C =298.15 K

Volume of hydrogen gas = V = 0.949 L

Moles of hydrogen gas =n

PV = nRT (Ideal gas equation )

n=\frac{PV}{RT}=\frac{0.966 atm\times 0.949 L}{0.0821 atm L/mol K\times 298.15 K}

n = 0.03745 mol

Moles of hydrogen gas = 0.03745 mol

Mass of  0.03745 moles of hydrogen gas  = 0.03745 mol × 2 g/mol = 0.0749 g

Mass of hydrogen gas evolved is 0.0749 grams.

3 0
3 years ago
for the reaction, Pb(no3)2 + 2kI yields pbi 2 + 2 kno3, how many moles of lead iodine are produced from 300 g of potassium iodin
My name is Ann [436]
Good its true no problem plus 222-333
7 0
3 years ago
Which best defines nitrogen fixation
arlik [135]

Answer: the conversion of nitrogen gas into a usable form

Explanation: its a process that bacteria converts nitrogen gas into a usable form

5 0
3 years ago
Which substance is most likely metallic
Montano1993 [528]
I don’t know “which substance” are you talking about??

You can put the picture there so we can see.
8 0
3 years ago
Read 2 more answers
How much time does it take for light from the center of the galaxy to reach Earth?
Ede4ka [16]

Answer:

Light moves at 300,000 kilometers per second, divide these and you get 500 seconds, or 8 minutes and 20 seconds this is an average number.

Explanation:

3 0
3 years ago
Other questions:
  • Copper crystallizes in a face centered cubic lattice. if the edge of the unit cell is 351 pm what is the radius of the copper at
    5·1 answer
  • Which would increase the amount of dissolved oxygen in a pond
    8·1 answer
  • Group of students is investigating whether the force of friction depends on the nature of the surfaces in contact. The students
    13·2 answers
  • 2 questions:
    6·1 answer
  • Which action is a change in state
    11·1 answer
  • Magma generated by a hot spot rises through the rigid plates of the lithosphere and produces active volcanoes at the Earth's
    7·2 answers
  • Water has a formula of H2O. Based on the formula which is NOT a correct statement?
    11·2 answers
  • What common substance can be used to neutralize a spilled acid.
    10·1 answer
  • According to the arrhenius concept, the
    6·1 answer
  • In an alkane the mass ratio between hydrogen and carbon is 7/36. What is the formula of alkane?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!