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
likoan [24]
3 years ago
13

Please help!!!!!!!!!!!!!!!!

Chemistry
1 answer:
STALIN [3.7K]3 years ago
3 0
1. Dmitri created groups of 3
2. John Newlands arranged the elements
3. Antoine Lavoisier divided them into catagories
4. Johann used patterns

hope this helped :) 
You might be interested in
True or false atoms with fewer then 4 outer elections lend elections?
Mamont248 [21]
The answer is false ....

3 0
3 years ago
What is a number bond.
GenaCL600 [577]

Explanation:

number bonds are pairs of numbers that can be added together to make another number e.g. 4 + 6 = 10. They are some of the most basic and most importantparts ofmaths for children to learn

3 0
2 years ago
Need help on this really bad!
timofeeve [1]

Answer:

Help your self

Explanation:

7 0
2 years ago
What do atom, molecules, and elements have in common
____ [38]

Answer:

Solids, liquids, gases - all matter - are made up of atoms (or other things, like molecules, that are made from atoms)! ELEMENTS are the kinds of atoms that we can have. Carbon is an element, hydrogen is an element, and so is oxygen. ... Atoms can join together - they form bonds together - to make MOLECULES.

6 0
2 years ago
In 2021 the James Webb Telescope will begin operation focusing on infrared wavelengths and must be kept extremely _______.
faust18 [17]

In 2021 the James Webb Telescope will begin operation focusing on infrared wavelengths and must be kept extremely cold.

<h3>What is James Webb Telescope?</h3>

The James Webb Telescope is the most important optical telescope present in space, which is employed by astronomers to observe celestial bodies and physical phenomena in the universe.

This space telescope (James Webb Telescope) is based on the infrared wavelengths that cover a specific length of 0.57 to 28-micrometer waves and enable to observe different spectra across the Universe.

In conclusion, in 2021 the James Webb Telescope will begin operation focusing on infrared wavelengths and must be kept extremely cold.

Learn more about the James Webb Telescope here:

brainly.com/question/8962979

#SPJ1

5 0
2 years ago
Other questions:
  • After analyzing rock core samples in an area with frequent earthquakes, many geologists believe a severe earthquake will occur i
    10·2 answers
  • What is the least amount of energy that can be emitted by an excited electron in a hydrogen atom falling from an excited state d
    5·2 answers
  • Hey can someone help me and show work please
    9·1 answer
  • The following graph compares the greenhouse gas emissions from different forms of electricity production.
    11·2 answers
  • What is the mass of oxygen in 300 grams of carbonic acid (H2CO3)
    14·1 answer
  • Which is an example of the flow of heat through conduction?
    13·2 answers
  • PLEASE ASNWR ASAP
    6·1 answer
  • If have a volume of 18 L of a gas at a temperature of 272 K and a pressure of 90 atm, what will be the pressure of the gas if ra
    10·1 answer
  • What is the independent variable?<br> (For science)
    5·1 answer
  • PZZZZZZZ just Answer this question 20 POINT What happens to the total energy as the skater moves down and up the U-shaped ramp?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!