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
lozanna [386]
3 years ago
8

The atomic mass of boron is 10.811. What is the mass number of the most

Chemistry
1 answer:
Sati [7]3 years ago
7 0

Answer:

C.11

Explanation:

Boron-11 makes up around 80% of all natural Boron. And, typically, the quickest way to determine the most abundant isotope of an element is to just round the atomic mass to the nearest whole number.

You might be interested in
!!!!HELP PLEASE!!!!!Which of the following molecules has a trigonal pyramidal shape?
aksik [14]

Answer:

No.D is the molecules that has trigonal pyramidal sape

8 0
3 years ago
Read 2 more answers
Which of the following electron configurations describes an element that is a noble gas?
butalik [34]

Answer:

The answer to your question is: letter D.

Explanation:

Noble gases are located in group VIIIA of the periodic table, this means that they have 8 eight electrons in their outermost shell.

Due to this characteristic, they are stable and do not react with other elements.

a. 1s22s22p4    The outermost shell of this electron configuration has 6 electrons, then this element has 6 electrons not 8. This configuration is of an element of the group VIA.

b. [Ne]2s22p2  The outermost shell of this element has 4 electrons, so this is not the configuration of a noble gas.

c. [Ar] 3s1  This element only has one electron in its outermost shell, so this is the electron configuration of an alkaline metal.

d. 1s22s22p6 This element has 8 electrons in its outermost shell, so this is the electron configuration of a noble gas.

5 0
2 years ago
Read 2 more answers
Formula of the compound formed between<br> Cs and I is
Natalija [7]

Answer:The compound created by calcium and chlorine is calcium chloride, and the formula for this compound is CaCl2 .

Explanation:

8 0
3 years ago
Which set of elements has 4 valence electrons?
pickupchik [31]

Answer:

carbon group

All the carbon group atoms, having four valence electrons, form covalent bonds with nonmetal atoms; carbon and silicon cannot lose or gain electrons to form free ions, whereas germanium, tin, and lead do form metallic ions but only with two positive charges.

4 0
3 years ago
b) Explain what happens when a drop of concentrated sugar solution is placed on a rheo leaf peel mounted on a glass slide. Name
user100 [1]

The rheo leaf peel will lose water by osmosis and become flaccid. If the rheo leaf was boiled, this would not happen.

<h3>What is osmosis?</h3>

Across living membranes, water moves from a region of high to a region of low water potential.

Concentrated sugar solutions have low water potential when compared to the cell sap of the cells of rheo leaf peel. Thus, water will move from the rheo leaf peel to the sugar solution.

This will result in the wilting of the leaf peel.

If the leaf peel is boiled, the membranes in the cells die and can no longer function as a selectively permeable interface.

More on osmosis can be found here: brainly.com/question/1799974

#SPJ1

6 0
1 year ago
Other questions:
  • Why is a solution not a pure substance?
    9·1 answer
  • Which equation represents a physical change?
    10·2 answers
  • What are the 3 types of weathering
    13·2 answers
  • In a _______ mixture, the ingredients are distributed evenly throughout the mixture, while in a _______ mixture, the ingredients
    8·2 answers
  • How many moles of copper are needed to react with sulfur to produce 0.25 moles Ol
    10·1 answer
  • Worth 47 POINTS!!!
    6·1 answer
  • Calculate the energy of light with a frequency of 5.21 x 104 Hz
    12·1 answer
  • FeS2---SO2---SO3---H2SO4---Na2S
    7·1 answer
  • Pls help! 2CO + O2 → 2CO2
    11·2 answers
  • Explain preparation of alkanes C--C from industrial source for industrial preparation of alkane​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!