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
nekit [7.7K]
3 years ago
7

Now select a longer period, say the fourth period, starting with the element in the 1A group. Again, go from left to right. What

do you notice about the pattern of change in the electron configuration as you go from left to right?
Chemistry
1 answer:
Inessa [10]3 years ago
5 0

Answer:

The pattern of change in the electron configuration increases from left to right across the period.

Explanation:

In the periodic table, elements having the same number of electrons in the outermost shell of their atoms are placed over one another in vertical columns. Each of the vertical columns is known as a group or family. while each of the resulting horizontal rows is known as a period or row.

There are 18 vertical columns and seven periods in the periodic table. Each period begins with an atom having a valence electron and ends with an atom having a complete outer shell structure of an inert gas.

The fourth period of the periodic table (d-block) consists of the transition elements.

The electron distribution into the energy levels of sublevels of atoms  can be shown in any of the tree important electronic configuration.

Electronic configuration shows the sequence of filling electrons into the orbitals of the sublevels as guided by some principles.

The maximum number of electrons in the orbitals of sublevels are two for s-sublevel(one orbital) ; six for p-sublevel( three orbital); ten for d-sublevel ( five orbitals) and fourteen for f-sublevel( seven orbitals). This indicates that the maximum number of electrons in an orbital is two

In the Periodic table ,The sublevels with lower energies are filled  up before those with higher energies. One important thing about this principle is that the sublevels do not fill up in numerical order. The pattern of filling is as follows:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f etc.

You might be interested in
What are alkenes used to make?
evablogger [386]

Answer:

By far the most important use of alkenes is in the making of plastics as plastics are used in almost everything.

Explanation:

Alkenes themselves aren't used much in everyday life however Alkenes are very important to industrial synthesis as it is relatively easy to turn them into other things.

Alkenes can be turned into polymers or plastics through addition reactions and the most common ethene is turned into everything from plastic bags to bottles.

Alkenes can also be turned into alcohols. most commonly propene is used as a feedstock to produce butanol and other products useful in industry or for production

Explanation:

Can you be my friend in here

3 0
3 years ago
Read 2 more answers
What’s the answer to this question pls help
Solnce55 [7]
In order of reactivity: magnesium, iron, copper, silver
4 0
3 years ago
Make the equations for the reactions between calcium and hydrochloric acid, name the products.
Goryan [66]

Answer:

Calcium carbonate reacts with hydrochloric acid to form carbon dioxide gas. 2HCl (aq) + CaCO 3(s) CaCl 2 (aq) + CO 2(g) + H 2 O (l).

3 0
3 years ago
In your own words, describe chromosomes, genes, and DNA.
FinnZ [79.3K]
A gene is the basic unit of heredity, DNA a self replicating material and chromosome a structure of nucleic acids and protein.
4 0
3 years ago
Which equation represents sublimation?<br> 2Al+3I=2AlI<br> HgCl=HgCl
AlexFokin [52]
I guess it is the second one but you missed the state symbols.
4 0
3 years ago
Other questions:
  • What basic law of chemical reactions do nuclear reactions break
    9·1 answer
  • How are the elements arranged in the modern periodic table g?
    14·1 answer
  • If you were building a device that used a chemical reaction to preserve food, like those used in refrigerators, what kinds of re
    9·1 answer
  • Toluene (C7H8) and nitric acid (HNO3) are used in the production of trinitrotoluene (TNT, C7H5N3O6), an explosive. C7H8 + HNO3 =
    7·1 answer
  • A certain chemical reaction releases 36.2 kJ/g of heat for each gram of reactant consumed. How can you calculate what mass of re
    8·1 answer
  • How does amount of greenhouse gases affect the temperature of the Earth's atmosphere?
    15·2 answers
  • Which has more atoms, 1 moles of barium atoms or 2 moles of carbon atoms?
    11·2 answers
  • Name of equipments that uses in crude oil distillation?​
    6·1 answer
  • Name this compound (ignore Stereocenter)<br>​
    10·1 answer
  • Is decay pool or flux
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!