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
Crazy boy [7]
4 years ago
6

How were the elements in the first periodic table arranged?

Chemistry
1 answer:
Snezhnost [94]4 years ago
5 0

Based on atomic mass

Explanation:

Elements were arranged on the first periodic table based on their atomic masses.

The mass of an atom is made up of the mass of the nucleus which contains the protons and neutrons.

  • Dimitri Mendeleev was the first person credited for arranging elements periodically.
  • He was said to have been inspired while playing his game of solitaire on a train.
  • On his table, he left spaces for the atomic masses of elements not yet discovered.
  • Today, the periodic table is based on the atomic numbers of elements. This is the number of protons in an atom.

Learn more:

Periodic table brainly.com/question/2690837

#learnwithBrainly

You might be interested in
Which side does the light always start from?
jarptica [38.1K]

Answer:

in prism

it's from the rectangular reflecting surface

7 0
2 years ago
Can you catch coronavirus from F.A.R.Ts?
ZanzabumX [31]

Answer:

No

Explanation:

Droplets or aerosols. When an infected person coughs, sneezes, or talks, droplets or tiny particles called aerosols carry the virus into the air from their nose or mouth. Anyone who is within 6 feet of that person can breathe it into their lungs.

Airborne transmission. Research shows that the virus can live in the air for up to 3 hours. It can get into your lungs if someone who has it breathes out and you breathe that air in.

Surface transmission. Another way to catch the new coronavirus is when you touch surfaces that someone who has the virus has coughed or sneezed on. You may touch a countertop or doorknob that's contaminated and then touch your nose, mouth, or eyes. The virus can live on surfaces like plastic and stainless steel for 2 to 3 days. To stop it, clean and disinfect all counters, knobs, and other surfaces you and your family touch several times a day.

Fecal-oral. Studies also suggest that virus particles can be found in infected people's poop. But experts aren't sure whether the infection can spread through contact with an infected person's stool. If that person uses the bathroom and doesn't wash their hands, they could infect things and people that they touch.

6 0
4 years ago
Compare The atomic number
gayaneshka [121]

Answer:

They are different ions of the same element.

Explanation:

on Quizlet

8 0
3 years ago
How many moles of O2 are needed to react completely with 35.0 mol C2h2
Wittaler [7]

Hey There!:


2 C2H2 + 5 O2 = 4 CO2 + 2 H2O


2 moles C2H2 ----------- 5 moles O2

35.0 moles C2H2 ------- moles O2


moles O2 = 35.0 * 5 / 2


moles O2 = 87.5 moles


hope this helps!

6 0
3 years ago
According to the periodic table, which of these elements will form an ion with a –2 charge? calcium
Serga [27]

Answer:

hfjfuufhdhdhjdjdjjdjjdudjfjfjjfjfjjfjf

6 0
3 years ago
Other questions:
  • Which substance will require more energy to heat if all the samples have the same mass and same temperature change?
    15·1 answer
  • What moves across axons?
    5·2 answers
  • `Determining the limiting reactant is an extremely important concept in chemistry. To do this, you need to know all of the follo
    8·1 answer
  • Zygote fungi spores can survive very harsh conditions
    12·1 answer
  • What makes some collisions elastic and others inelastic
    9·2 answers
  • The primary mechanism for converting atmospheric carbon into usable forms for life on earth is achieved by
    12·2 answers
  • HELP QUICK ILL GIVE YOU BRAINLIEST AND 25 POINTS! bromine (br) has four energy levels. name 2 other elements that would have fou
    12·2 answers
  • Mitosis is an example of what
    7·1 answer
  • Write a variable expression that represents the following word phrase: three more than two times the difference of x and one.​
    13·2 answers
  • In an endothermic reaction, what happens to the surroundings?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!