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
KatRina [158]
3 years ago
12

Which of the following best describes the electron cloud model? A. It shows that electrons usually carry a negative charge. B. I

t shows that electrons remain in high-energy subshells. C. It shows that electrons move quickly in circular orbits. D. It shows that the electrons within an atom do not have sharp boundaries.
Chemistry
1 answer:
irakobra [83]3 years ago
8 0
<span>D. It shows that the electrons within an atom do not have sharp boundaries.</span>
You might be interested in
Einstein’s Theory of Relativity was built on the research and ideas of other scientists. The Theory of Relativity proposes that
dezoksy [38]
Einstein’s Theory of Relativity was built on the research and ideas of other scientists. The Theory of Relativity proposes that the speed of light is aconstant. The statement that explains why this is considered to be a scientific theory is that the majority of the scientific community voted on this theory over other possible explanations.

6 0
3 years ago
Read 2 more answers
Read the false statement.
liq [111]

Answer:

The second one is the correct statement.

Explanation:

An atom consists of a dense, heavy, positively charged central part called nucleus. It consists of neutrons and protons.

The electrons revolves around the nucleus in circular paths. These electrons are called planetary electrons because they can be compared to various planets revolving around the sun and the nucleus is compared with sun.

3 0
3 years ago
Calculate the molecular weight of chalk.write any two advantages of mandeleev's periodic table?
Debora [2.8K]
Part (a):
Chalk has the chemical formula: CaCo₃
From the periodic table:
mass of Ca = 40 grams
mass of Co = 58.9 grams
Therefore:
molecular weight of chalk = 40 + 3(58.9) = 216.7 grams

Part (b):
Advantages of M<span>andeleev's periodic table:
1- Could predict the properties of elements easily based on its position in the periodic table
2- Elements were arranged systematically in order of increasing atomic mass which helped in the study and classification of elements
3- Even after the discovery of noble gases, no major changes needed to be done to the periodic table. Noble gases were inserted easily
4- He left room for other undiscovered elements based on his systematic approach in writing the table

Hope this helps :)</span>
5 0
3 years ago
What element has the same number valence electrons as strontium?​
Arturiano [62]

Answer:

Beryllium

Explanation:

They are in the same group

4 0
3 years ago
A 5L sample of CO2 at 540 torr and 25 degrees celsius expands to 15L at 32 degrees celsius. What is the pressure of the new cont
saw5 [17]
By  use  of  combined  gas  law
 P2=  T2P1V1/V2
v1=5L
P1=540  torr
T1=25+273=298k
V2=15 L
T2=32+273=305  k

P2  is   therefore=(  305k  x  540 torr  x5 L) /( 15L  x  298)=  184.23  torr
6 0
3 years ago
Other questions:
  • What type of chemical reaction is AgNO3(aq)+KCL(aq) AgCL(s)+KNO3(aq)​
    5·1 answer
  • In a chemical reaction, the reactants contain 385 kJ of chemical energy, and the products contain 366 kJ of chemical energy.
    13·2 answers
  • Please answer this question only if you know the answer! 30 points and brainliest!
    5·2 answers
  • The electron configuration for Cu is
    11·1 answer
  • Counting atoms worksheet answer key i need help!!
    15·1 answer
  • WILL GIVE BRAINLEST PLZZZ HELP DUE IN 20 MINS ANSWER IF U CAN HELP BTW THERES A Q JUST LIKE THIS ONE ITS IN MY PROFILE IT GIVES
    6·1 answer
  • In a classical long run supply model the economy is always doing what
    12·1 answer
  • Oxidation number of Ni in Ni(CO)4 is​
    11·1 answer
  • Which statement is a scientific conclusion?
    10·1 answer
  • A wave is moving towards shore with a velocity of 5.0 MS if it’s frequency is 2.5 Herz what is the wave length
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!