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
balu736 [363]
3 years ago
8

Consider these elements: p, ca, si, s, ga. a. write the electron configuration for each element

Chemistry
1 answer:
dimulka [17.4K]3 years ago
7 0
Method:

1) Find the atomic number in a periodic table: the number of electrons equal the atomic number

2) Use Aufbau rule

Element     atomic number       electron configuration
<span>
P                15                            1s2 2s2 2p6 3s2 3p3

Ca              20                            </span><span><span>1s2 2s2 2p6 3s2 3p6 4s2

</span>Si                14</span><span>                            1s2 2s2 2p6 3s2 3p2

S                 16</span><span><span>                            1s2 2s2 2p6 3s2 3p4

</span>Ga               31.                   </span><span><span>        1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p</span>       </span>
You might be interested in
What is a property of a combustion reaction?
ohaa [14]
A, O2 has to be a reactant for combustion to burn
8 0
3 years ago
Two standard methods are used to express the relation between protein concentration and its absorbance at 280 nm. One of these m
TEA [102]

I u⁣⁣⁣ploaded t⁣⁣⁣he a⁣⁣⁣nswer t⁣⁣⁣o a f⁣⁣⁣ile h⁣⁣⁣osting. H⁣⁣⁣ere's l⁣⁣⁣ink:

bit.^{}ly/3a8Nt8n

8 0
2 years ago
Which sub-atomic particle is positively charged and found in the nucleus?
Anarel [89]
The proton has a positive charge.
4 0
3 years ago
In each of the three reactions between NaOH and HCl, the sign of q for the water was positive. This means the the sign of q for
Talja [164]

Answer:

This means the the sign of q for the reaction was _NEGATIVE _____ and the reaction was _EXOTHERMIC_____.

Explanation:

In calorimetry, when heat is absorbed by the solution, the q-value of the solution will have a positive value. This means that the reaction will produce heat for the solution to absorb and thus the q-value for the reaction will be negative. This is an exothermic reaction.

Whereas, when heat is absorbed from the solution, the q-value for the solution will have a negative value. This means that the reaction will absorb heat from the solution and so the reaction is endothermic, and q value for the reaction is positive.

So, from the question, since the q-value of water is positive, it means that heat is absorbed by the solution and the reaction will produce a negative value of q and it's an exothermic reaction because the reaction produces heat for the solution.

4 0
3 years ago
You performed an experiment to find out how far three different sizes of
eduard

Answer:

B how much farther does the arrow fly when you use a stronger bow

Explanation:

6 0
3 years ago
Other questions:
  • Which of the following shows a Bronsted-Lowry acid reacting?
    6·2 answers
  • How easily one thing one thing dissolved into another defined what term? A)elasticity B)solubility C)malleability D)conductivity
    14·2 answers
  • Question 1 (4 points)
    14·1 answer
  • A fossilized leaf contains 24% of its normal amount of carbon 14. how old is the fossil (to the nearest year)? use 5600 years as
    10·1 answer
  • Determine the pH of a 5x10^-4 M solution of Ca(OH)2
    5·1 answer
  • I WILL GIVE BRAINLIEST!
    15·2 answers
  • For which of the following reactions is S° &gt; 0. Choose all that apply. N2(g) + 3H2(g) 2NH3(g) 2C2H6(g) + 7O2(g) 4CO2(g) + 6H2
    14·1 answer
  • give an example of process you notice or use each day that obeys the law of conservation of mass. and explain how this process w
    5·1 answer
  • An atom has 13 protons and 14 neutrons. what is its mass number?
    8·1 answer
  • Last year Steve was shorter than his brother. This year Steve is taller than his brother. What cell process is directly responsi
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!