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
Ierofanga [76]
2 years ago
8

Which of the following elements is the least reactive metal? Sodium, Rubidium, Chlorine, and Magnesium.​

Chemistry
1 answer:
LuckyWell [14K]2 years ago
6 0
First off chlorine is not a metal so you can ignore that one.

Sodium and Rubidium are in group 1 of the periodic table and Magnesium is in group 2.

Group one metals are more reactive than group two because it is harder for the group two metals to lose their 2 valence (outer most) electrons.

As you go down group 1 there is an increase in the reactivity this is because as you go down there is an increase in the atomic radius which leads to more shielding. This weakens the electrostatic forces of attraction making it easier to lose the outermost electrons, therefore they are more reactive.
You might be interested in
Why are lonic Compounds brittle?​
Kruka [31]
Ionic crystals are hard because of tight packing lattices, say, the positive and negative ions are strongly attached among themselves.
3 0
3 years ago
Which of the following is most likely to lose electrons in an ionic compound?
ANTONII [103]

Answer:

a. Lead (Pb)

Am 100% sure

Hope it helps

please mark me as brainliest

4 0
2 years ago
How to separate water from aqueous magnesium sulphate?​
Kitty [74]

Answer:

The method generally involves heating a mixture of epsomite and halite to form clusters of lower hydrated magnesium sulfate crystals and subsequently applying slight pressure to the clusters so that they collapse to yield fine, less hydrated magnesium sulfate crystals which can then be easily separated from the ...

3 0
3 years ago
An element has 8 protons and 8 neutrons in its nucleus and 8 electrons revolving around the nucleus. What is the atomic number a
Molodets [167]
C.

Protons is 8 so the atomic number will be 8.

Number of neutrons= atomic mass - atomic number

16-8 = 8.
5 0
3 years ago
The appropriate geometric "fixing" of two atoms which is necessary to start chemical rearrangement is called the:
ahrayia [7]
Hello there.

Question: <span>The appropriate geometric "fixing" of two atoms which is necessary to start chemical rearrangement is called the:

Answer: It is called activation complex.
</span><span>
Hope This Helps You!
Good Luck Studying ^-^</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • "an acid is a substance that forms hydrogen ions when dissolved in water." this is an example of —
    13·1 answer
  • 1. Define λmax and explain why it is desirable to do the experimental procedure at λmax? 2. Around what absorbance would you exp
    5·1 answer
  • Which of the following would be the best reason to use titration for monitoring the effects of acid rain on drinking water?
    10·2 answers
  • What is the frequency of a wave with a wavelength of 6.40x10^4 meters?
    5·2 answers
  • How many moles are there in 45.0 grams of sulfuric acid,<br> H2SO4?<br> moles
    8·1 answer
  • What are 2 comparisons between organisms and music?
    14·2 answers
  • if i mix blue gatorade with red gatorade what do i get this is for my science exam right now please answer
    13·1 answer
  • 6. Calculate the mass of each product when 100.0 g of CuCl react according to the reaction
    5·1 answer
  • Someone pleaseeeeee helppp
    14·1 answer
  • Which ion has a smaller size,1)N---,O--,F-and Ne 2) Cl-,Br- and I ?Why<br> Help me to solve it!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!