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
Firdavs [7]
4 years ago
10

Mendeleev’s principle of chemical periodicity states that when the elements are arranged according to their atomic numbers. This

periodic law allows elements with similar properties to appear at regular intervals. Predict the group of elements and their number of valence electrons that will combine in a 2:1 ratio to with sodium.
a. bromine, chlorine, iodine, 7
b. sulfur, selenium, polonium, 6 Eliminate
c. hydrogen, fluorine, potassium, 1
d. calcium, phosphorus, tellurium, 2
Chemistry
1 answer:
san4es73 [151]4 years ago
5 0
Group 6, sulfur, selenium and polonium.

Valence -2

This group also has valences 4 and 6.

This group also includes oxygen and tellurium.
You might be interested in
A mixture of C3H8C3H8 and C2H2C2H2 has a mass of 2.8 gg . It is burned in excess O2O2 to form a mixture of water and carbon diox
julsineya [31]

Answer:

gghhgyuhuyyugffygcggyy

8 0
3 years ago
The si unit for measuring acceleration is?
ehidna [41]

m/s² aka meter per second squared.

acceleration = change in velocity/time  

= distance/time

--

time  

= m/s

--

s

=m/s^2

7 0
4 years ago
Read 2 more answers
The kinetic molecular theory (KMT) deals specifically with
fgiga [73]
This kind of questions cannot be open because there might be many different answers depending of the focus.

In fact, I found the set of options that comes with this questions. This is:

A. behavior of ions.
B. molecular bonding.
C. molecular shape.
D. molecular motion.

Of course, the answer is the option D. molecular motion.

And, of course, you need an explanation.

It is good to know that the word kinetic refers to motion, so definetly kinetic molecular theory is a theory about the motion of the molecules.

With that you likely had been able to answer the question. But it is good to know what the molecular theory is.

The molecular kinetic molecular theory explains the properties and behavior of the gases in terms of the motion of its particles (molecules) making several assumptions about the energy, size and motion of such particles.
7 0
4 years ago
Read 2 more answers
Which type of noncovalent interaction can involve either the polypeptide backbone or amino acid side chains?
seraphim [82]
The answer is hydrogen bonds
4 0
2 years ago
What dangerous element does Feista Wear contain
strojnjashka [21]

uranium oxide

Hope This Helps!       Have A Nice Day!!

3 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles of S_2 are needed to produce .750 moles of SO_2 gas?
    6·1 answer
  • How is temperature related to the physical change of a substance?<br><br>​
    11·2 answers
  • Which of the following sources is considered to be most reliable for scientific
    15·1 answer
  • What is the molarity of a solution that contains 30 grams of naoh in 500 milliliters of solution?
    15·2 answers
  • If 9.9L of helium are in a tire at 303k,how many liters will be present at 403k if the pressure is held constant.
    5·1 answer
  • Which picture best illustrates thermal energy transfer by conduction?
    5·2 answers
  • Over the past week, Anna has been very curt with shondra, and when she ask if she has done something to offend her, Anna tersely
    10·1 answer
  • Excessive use of fertilizers make soil unfertile. true or false​
    9·2 answers
  • Which option correctly describes the pattern of valence electrons on the periodic table? (1 point)
    14·1 answer
  • Water temperature is a factor that can affect hypoxic
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!