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
ahrayia [7]
3 years ago
8

Why is Mendeleev's suggestions best accepted in the construction of the periodic table​

Chemistry
1 answer:
crimeas [40]3 years ago
8 0
Search Results
Featured snippet from the web
Mendeleev's periodic table became widely accepted because it correctly predicted the properties of elements that had not yet been discovered.
You might be interested in
What did Aristotle believe?
Crank

Answer:

C.) That all matter was composed of earth, fire, water and air

Explanation:

Just took the test

4 0
3 years ago
Enter the appropriate symbol for an isotope of phosphorus-32 corresponding to the isotope notation AZX. Express your answer as a
Lelechka [254]

Answer:

^{32}_{15}P

Explanation:

Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.

However, when we talk about the atomic number of the ion, it is not equal to the number of electrons as electron can be gained or loosed.

This is why, more appropriately, the number of the protons which are present in the nucleus of the atom is called the atomic number.

Thus, atomic number of phosphorus = 15

Mass number is the number of the entities present in the nucleus which is the equal to the sum of the number of protons and electrons.

Given, Mass number = 32

Thus, the symbol of the isotope is:-

^{32}_{15}P

8 0
3 years ago
What is the mass of an object with a net force of 10 N accelerating at 2 m/s^2??
xz_007 [3.2K]

Answer:

5kg

Explanation:

Force = Mass x acceleration

F = ma

m = F/a = 10N/2m/s^2

m = 10/2 = 5kg

The standard unit for mass = Kilogram

5 0
3 years ago
Enter an equation for the formation of NO2(g) from its elements in their standard states. Express your answer as a chemical equa
kkurt [141]

The standard state of the elements Nitrogen and Oxygen are N2 and O2, knowing that they are diatomic elements. With that piece of information, the unbalanced equation for the formulation of NO2(g) should be as follows -

N2 + O2 ---> NO2

And if you include their states -

N2 ( g ) + O2 ( g ) ---> NO2 ( g )

To balance this chemical equation consider the number of reactants and products on other side of the equation. If you were to include a coefficient of one - half with respect to N2 on the reactant side, it would balance the reactants and products -

7 0
3 years ago
How many protons do calcium have
Vsevolod [243]
A calcium atom has 20 protons!

There you go! I really hope this helped, if there’s anything just let me know! ☻
6 0
3 years ago
Read 2 more answers
Other questions:
  • Charlie is balancing an equation. She has identified the atoms and counted the number of each in the reactants and products. Wha
    13·2 answers
  • The major cause of a warmer planet<br> comes from?
    5·1 answer
  • A reaction releases 489.34 J of heat how many calories of heat is that equal to 1 cal equals 4.186 J
    12·1 answer
  • Which isotope completes this nuclear reaction?
    5·1 answer
  • If a cloud holding the most water vapor it possibly can suddenly cools what will occur
    7·2 answers
  • A group of students are studying how different stimuli affect the growth of plants. They place a growth lamp next to a plant tha
    6·1 answer
  • WILL MARK AS BRAINLIEST
    9·2 answers
  • What is called oxidizing agent and reducing agent?
    10·1 answer
  • It exists between polar covalent molecules
    12·1 answer
  • Which layer is thin, brittle, solid, and composed primarily of silica?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!