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
zloy xaker [14]
3 years ago
12

What happens to the atomic radius when an elctron is lost​

Chemistry
1 answer:
Daniel [21]3 years ago
5 0

Answer:

It decreases.

Explanation:

Due to changes in the Coulombic force, the protons within the nucleus of the ion have a much easier time pulling at one fewer electrons. This way, the electrons are pulled closer to the center, causing the radius to decrease.

You might be interested in
Which of the following elements is a metalloid
klemol [59]
A metalloid can be:
 - Boron (B)
 - Silicon (Si)
 - Germanium ( Ge)
 - Arsenic (As) 
 - Antimony ( Sb)
 - Tellurium (Te)
 - Polonium (Po)

Hope this helps :)
6 0
3 years ago
Read 2 more answers
Be sure to answer all parts. In the average adult male, the residual volume (RV) of the lungs, the volume of air remaining after
Alenkinab [10]

<u>Answer:</u>

<u>For a:</u> The number of moles of air present in the RV is 0.047 moles

<u>For b:</u> The number of molecules of gas is 2.83\times 10^{22}

<u>Explanation:</u>

  • <u>For a:</u>

To calculate the number of moles, we use the equation given by ideal gas follows:

PV=nRT

where,

P = pressure of the air = 1.00 atm

V = Volume of the air = 1200 mL = 1.2 L    (Conversion factor:  1 L = 1000 mL)

T = Temperature of the air = 37^oC=[37+273]K=310K

R = Gas constant = 0.0821\text{ L. atm }mol^{-1}K^{-1}

n = number of moles of air = ?

Putting values in above equation, we get:

1.00atm\times 1.2L=n_{air}\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times 310K\\n_{air}=\frac{1.00\times 1.2}{0.0821\times 310}=0.047mol

Hence, the number of moles of air present in the RV is 0.047 moles

  • <u>For b:</u>

According to mole concept:

1 mole of a compound contains 6.022\times 10^{23} number of molecules.

So, 0.047 moles of air will contain (0.047\times 6.022\times 10^{23})=2.83\times 10^{22} number of gas molecules.

Hence, the number of molecules of gas is 2.83\times 10^{22}

7 0
2 years ago
Which of the following is a way that some animals bodies adapt to living in extremely cold climates
HACTEHA [7]
B hibernation but it deppends on the animal
7 0
3 years ago
Read 2 more answers
A student is studying the rate of the following reaction: C2H4O NaOH --&gt; H20 NaC2H3O Knowing that this is an exothermic react
emmasim [6.3K]

Answer:

HCl is not a catalyst because these are not used up during the chemical reactions.

Explanation:

Hello there!

In this case, according to the performed experiments, it is possible for us to realize that HCl cannot be a catalyst for this reaction because it is used up during the reaction. This is explained by the fact that catalyst are able to return to the original form once the reaction has gone to completion; this is the example of palladium in the hydrogenation or dehydrogenation of hydrocarbons depending on the case. Moreover, we know that the catalysts increase the reaction rate because they decrease the activation energy of the reaction and therefore the student observed such increase.

Best regards!

8 0
3 years ago
(b)
mixas84 [53]

Answer:

Group 18th

Explanation:

The group 18th of periodic table which is composed of Noble gases mainly was missing from the Mendeleev's periodic table. The reason for this is that Noble gases are least reactive, therefore, it was difficult to predict such elements which do not react with other elements.

4 0
3 years ago
Other questions:
  • Which image(s) would be considered pure substances? A) V B) I and II C) II and IV D) III and V
    14·2 answers
  • if the pressure in a balloon is 20 atm at 20 K, what will be the pressure when the temperature is raised to 30K?
    15·1 answer
  • On one side of the cycle, green plants take in carbon atoms from the air make them part of their______
    6·1 answer
  • How many moles are in 6.8 x 10^23 molecules of NaOH? (show work please)
    6·1 answer
  • Of the following, only ________ has sp2 hybridization of the central atom. Of the following, only ________ has sp2 hybridization
    8·1 answer
  • (HELP I HAVE 10 MINS TO TURN IN) why is the nervous system in the human body a system?
    5·1 answer
  • NEED HELP WITH ONE QUESTION.
    9·1 answer
  • Sita made a model of three parts of the solar system, the Sun, Earth and Moon.
    14·1 answer
  • What is the molarity of a NaOH solution if 48.0 mL of a 0.220 M H2SO4 solution is required to neutralize a 25.0-mL sample of the
    9·1 answer
  • Soils have four basic components. What important soil component is a by-product of the action of decomposers like bacteria and f
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!