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
Sonbull [250]
3 years ago
9

In his version of the periodic table, mendeleev based his arrangement of the elements on an element's _________. atomic number c

hemical symbol atomic mass name
Chemistry
1 answer:
sammy [17]3 years ago
4 0
ʜᴇʟʟᴏ ᴛʜᴇʀᴇ!

In his version of the periodic table, Mendeleev based his arrangement of the elements on an element's atomic mass.

нσρє тнιѕ нєℓρѕ уσυ!
gσσ∂ ℓυ¢к :)
нανє α gяєαт ∂αу  

- нαηηαн ❤
You might be interested in
What are bacteria? Chapter 7 lesson 2 AYU
Maru [420]

Answer:

a group of unicellular microorganisms

7 0
3 years ago
Read 2 more answers
Predict the sign of ΔSsys for each of the following processes. Which are positive? (a) Gasoline vapors mix with air in a car eng
OLEGan [10]

Answer:

Positive: a and b

Negative: c

Explanation:

The entropy (S) is the measure of the randomness of the system, and it intends to increase. The randomness can be determined by the energy of the molecules, their velocity and how distance they are between the other molecules.

When the entropy increases, ΔS is positive, when the entropy decreases, ΔS is negative. So, when gasoline mix with air in a car engine, the process intends to continue, the randomness increases and ΔS is positive. When hot air expands, the distance between the molecules increases, so ΔS is positive.

But, when humidity condenses, the molecules stay closer, so there's a decrease in the randomness, then ΔS is negative.

6 0
3 years ago
Webb has calculated the percent composition of a compound. How can he check his result?
fenix001 [56]
Webb has calculated the percent composition of a compound. He can check his result by adding them to see if they equal up to 100. Why? Well, percent composition tells the quantity of elements with 100 as a base of total amount. This means that it will have to add to 100 to check the result. You would add up all of the values of percent composition of elements to see if they equal 100, and if they do, the results are accurate.

Your final answer: Webb can check his result by seeing if they add up to 100, considering that is the base total quantity.
7 0
2 years ago
Choose the atom with:
nata0808 [166]

Answer:

a )Li

b)O

c)F

Explanation:

a) Li-1s^2 2s^1

F-1s^2 2s^2 2p^5

it is easy to pull out e- from 2p orbit than 2s because 2s orbit is close to nucleus.Therefore Li have high ionisation enthalpy

b)oxygen ion is larger than Na because o have fewer proton

c)F because it requires only 1e to achieve stable noble gas configuration.Therefore to achieve stable nobke gas electonic configuration it accept 1e.

6 0
3 years ago
What are the three states or matter? Whoever answers first, gets a follow bck
Elza [17]
Solid liquid and gas is the answer
8 0
3 years ago
Read 2 more answers
Other questions:
  • Why is water a very good substance for use in cooling systems of automobiles?
    9·1 answer
  • Acid indigestion is sometimes neutralized with an antacid such as magnesium hydroxide (Mg(OH)2). What products will be released
    14·1 answer
  • At 25 celsius, 1.00 ,ole of O2 was found to occupy a volume of 12.5 L at a pressure of 198 kPa. What value of the gas constant i
    8·1 answer
  • Picture has the question
    11·2 answers
  • What is the volume of as sample that has a mass of 40.0 g and a density of 4.30 g/mL?
    15·1 answer
  • WILL NAME BRAINLIST!! Which term names the process cells use to obtain energy from food?
    8·1 answer
  • Which could describe the motion of an object? Select 3 correct answers. distance = 10 meters and displacement = 1 meter distance
    14·2 answers
  • When a mixture of iron powder and sulphur is heated it glows more brightly than that of iron filings and sulphur.Explain this ob
    7·1 answer
  • HELPP!<br> how many grams are in 1.50 x 10(24) atoms of copper?
    12·1 answer
  • Which of the following statements explains why fossil fuels are nonrenewable resources
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!