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
bogdanovich [222]
3 years ago
9

Question 9 rank the effective nuclear charge z * experienced by a valence electron in each of these atoms:

Chemistry
1 answer:
AlexFokin [52]3 years ago
7 0
To rank the effective nuclear charge Z* experienced by a valence electrons of a set of atoms that belong to a same period, you only need to apply the rule of trend: it increases as you move from left to right in the period.

So, lets do it for these atoms: P,  Al, Si, Cl

The belong to a same period and the order is Al, Si, P, Cl (just see a periodic table). So the rank is Al < Si < P < Cl

Now, lets do it for these atoms:, Be, Ne, O, C

They belong to the second period. The order is Be, C, O, Ne

So, the rank is Be < C < O < Ne.


You might be interested in
Identify the Lewis acid and Lewis base from among the reactants in each of the following equations.
Alex

Answer:

Part A

Ag+ is the Lewis acid and NH3 is the Lewis base.

Part B

AlBr3 is the Lewis acid and NH3 is the Lewis base.

Part C

AlCl3 is the Lewis acid and Cl− is the Lewis base.

Explanation:

A Lewis acid is any specie that accepts a lone pair of electrons. Ag^+, AlBr3 and AlCl3 all accepted lone pairs of electrons according to the three chemical reaction equations shown. Hence, they are Lewis acids.

A Lewis base donates a lone pair of electrons. They include neutral molecules having lone pair of electrons such as NH3 or negative ions such as Cl- .

3 0
2 years ago
Which of the following equations has correct formulas and also is a balanced equation?
aliya0001 [1]

Answer : The correct option is, (B)

Explanation :

Balance equation : Balanced equation are those equation in which the number of atoms of each element and the total charge must be same on products side and reactants side.

In the given options, only option (B) equation has correct formula and also a balanced equation.

2Be+O_2\rightarrow 2BeO

while the other options has incorrect formulas and also an unbalanced equations.

The correct equation for option A is, CaCO_3\rightarrow CaO+CO_2

The correct equation for option C is, 2Mg+O_2\rightarrow 2MgO

The correct equation for option D is, KCl+HNO_3\rightarrow HCl+KNO_3

Hence, the correct answer is, (B) 2Be+O_2\rightarrow 2BeO

5 0
3 years ago
A student walks 2 km in 30 min what is the students average In km/h
horrorfan [7]

I think the answer the students average is 15 km?


8 0
3 years ago
Which atomic property is different in each isotope of an element?
slava [35]
Mass number...use da textbook bra
6 0
3 years ago
Plsss helppp dont guess
kari74 [83]

maybe 1+8 (4+548) 4/6 4+4

6 0
2 years ago
Read 2 more answers
Other questions:
  • How many moles of ethyl alcohol, C2H6O, are in a 27.0g sample
    7·1 answer
  • This reaction is an explosive reaction of a strong acid combining with a strong base.
    7·2 answers
  • Is this equation balanced? Why or why not?
    12·2 answers
  • Explain why wrapping a fire blanket around somebody on fire would not be a good idea.
    6·1 answer
  • What is the molar mass of sulfur trioxide?
    14·2 answers
  • Which natural law do biogeochemical cycles address?
    8·2 answers
  • List one or two ideas or questions you have about Mars. You can make the questions or ideas complex or simple! Just please put i
    12·2 answers
  • Which formula represents a hydrocarbon with a double covalent bond?
    10·1 answer
  • What is it I need help​
    6·1 answer
  • Chloroform is an excellent solvent for extracting caffeine from water. The distribution coefficient, KD, (Cchloroform/Cwater) fo
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!