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
The _________________ are either elements or compounds which are present prior to a chemical reaction.
mr Goodwill [35]
Reactants would be the missing word in the sentence because they make up the products in a chemical reaction
3 0
3 years ago
Read 2 more answers
Bilangan oksidasi vanadium paling tinggi terdapat dalam senyawa..
emmasim [6.3K]
The answer is (b). As, vanadium is attached to five fluoride atoms, each flouride containing -1 oxidation state, hence five fluoride contains -5, to neutralize, vanadium should have +5 oxidation state.

8 0
3 years ago
A mixture of gases containing 0.20 mol of SO2 and 0.20 mol of O2 in a 4.0 L flask reacts to form SO3. If the temperature is 25ºC
diamong [38]

Answer : The pressure in the flask after reaction complete is, 2.4 atm

Explanation :

To calculate the pressure in the flask after reaction is complete we are using ideal gas equation.

PV=n_TRT\\\\P=(n_1+n_2)\times \frac{RT}{V}

where,

P = final pressure in the flask = ?

R = gas constant = 0.0821 L.atm/mol.K

T = temperature = 25^oC=273+25=298K

V = volume = 4.0 L

n_1 = moles of SO_2 = 0.20 mol

n_2 = moles of O_2 = 0.20 mol

Now put all the given values in the above expression, we get:

P=(0.20+0.20)mol\times \frac{(0.0821L.atm/mol.K)\times (298K)}{4.0L}

P=2.4atm

Thus, the pressure in the flask after reaction complete is, 2.4 atm

5 0
3 years ago
How many liters is in a gallon
solong [7]
1 Gallon = 3.7854118 Liters
5 0
3 years ago
Read 2 more answers
The movement of water both on and<br> above Earths surface
DanielleElmas [232]

The movement of water on and above the earth's surface is called the hydrologic cycle, or the water cycle. Hope this helps!

4 0
3 years ago
Other questions:
  • Which of the following does not involve colligative properties?
    9·2 answers
  • 7. How many significant figures are in the following numbers?
    9·1 answer
  • Near the surface of a liquid, fast-moving particles can break free and become a gas.
    9·1 answer
  • Sodium reacts with water to produce sodium hydroxide and hydrogen gas:
    12·1 answer
  • Missing words please help me
    14·2 answers
  • What happens to the potential energy of water in a stream as gravity pulls it downhill
    8·1 answer
  • A fire is an example of an exothermic reaction. Which of the following best
    9·1 answer
  • A jet is goes from 180km/s to 139km/s in 22 seconds. What is it's acceleration?
    10·1 answer
  • What is the mass of an object that has a total heat loss of 550. cal, a specific heat of
    15·1 answer
  • Why are space probes and other unmanned crafts more commonly used for space investigations than space crafts with crews of astro
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!