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
Stels [109]
3 years ago
5

Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass?

Chemistry
1 answer:
pentagon [3]3 years ago
6 0

Answer:

Henry Moseley

Explanation:

Dmitry Mendeleef and Lothar Meyer proposed a periodic table based on the atomic mass.

They stated a periodic law expressed as "chemical properties of elements are a periodic function of their atomic weights".

But, Henry Moseley in 1900s re-stated periodic law by changing the basis of the law from atomic weight to atomic number.

The present periodic law is stated as "the properties of elements are a periodic function of their atomic number".

You might be interested in
How many atoms are in each of the following molecules:A. CO2B. N2C. CHCOOH
zlopas [31]
<h2>Answer:</h2>

A) 3 atoms - 1 atom of Carbon and 2 atoms of oxygen.

B) 2 atoms of Nitrogen.

C) 6 atoms - 2 Carbon atoms, 2 Hydrogen atoms, and 2 Oxygen atoms.

<h2>Explanations:</h2>

A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound. Molecules are made up of atoms.

According to the following information, we are to find the number of atoms in the given molecules.

A) For carbon dioxide CO₂, this molecule is made of 3 atoms - 1 atom of Carbon and 2 atoms of oxygen.

B) For the compound N₂, this molecule is made up of 2 atoms of Nitrogen.

C) For the compound CHCOOH​, this molecule consists of 6 atoms - 2 Carbon atoms, 2 Hydrogen atoms, and 2 Oxygen atoms.

4 0
1 year ago
For this reaction: 4 Al + 3O2 = 2 Al2O3
MariettaO [177]
0.347 mols, working out shown on photo

7 0
3 years ago
I really need help with this Im lost
Illusion [34]
I believe it would weigh less if it’s blown up with helium because helium is lighter than air
5 0
3 years ago
1. What is the difference between accidental discoveries and scientific investigations?
Alenkasestr [34]

Answer:

the discovery will always need to be tested more where if you're investigating you should already be in a more controlled environment

4 0
3 years ago
URGENT
Vadim26 [7]

Answer:

Explanation:

Discussion

When Pressure increases  equilibrium shifts to the side with the smallest number of moles. But which side is that?

N2(g) + 3H2(g) ⇌ 2NH3(g)

The left side has 1 mol of nitrogen (N2) and 3 moles of Hydrogen = 4 mols

on the left side.

The right side has 2 mols of NH3 = 2 mols on the right.

Conclusion: You tell the number of mols by the Balance numbers to the left of each chemical in an equation.

Since the left side N2 + 3H2 = 4 mols, the equilibrium does NOT shift left.

2NH3 is only two mols.

The equilibrium shifts Right

Answer

D

7 0
2 years ago
Other questions:
  • The atmospheric pressure of a cold winter day in NYC is 25.94 InHg. Calculate this value in Pa.
    5·1 answer
  • What is the frequency of a wave?
    5·2 answers
  • How many atoms are bonded to the central atom in a fluorine (F2) molecule?
    9·1 answer
  • Iron has a density of 7.86 g/cm3 (1 cm3=1 mL). Calculate the volume (in dL) of a piece of iron having a mass of 3.26 kg . Note t
    15·1 answer
  • I will mark you brainliest&lt;3
    5·1 answer
  • Lead (Pb) is used to make a number of different alloys. What is the mass of lead present in an alloy containing 0.15 mol of lead
    7·1 answer
  • Which best describes a similarity between power plants that use water as an energy source and those that use wind as an energy s
    9·1 answer
  • If the Earth were to spin half as fast as it does now, how many hours would be in one day (one complete spin)?
    10·2 answers
  • All atoms of a given element must contain the same number of
    6·1 answer
  • What is the chemical formula for lithium chloride
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!