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
nevsk [136]
1 year ago
9

Look at the two question marks between zinc (zn) and arsenic (as). at the time, no elements were known with atomic weights betwe

en 65.2 and 75. but mendeleev predicted that two elements must exist with atomic weights in this range. what led mendeleev to predict that two undiscovered elements existed in that range?
Chemistry
1 answer:
Thepotemich [5.8K]1 year ago
3 0

<u>Mendeleev </u><u>positioned elements in the periodic table in</u><u> increasing order </u><u>of their atomic numbers, such that </u><u>elements </u><u>having identical chemical properties and characteristics plunge into the </u><u>same group.</u>

What is Mendeleev's periodic table called?

  • In order to represent similarities and patterns in the behavior of elements, Mendeleev created the periodic table, which is an arrangement of elements in an increasing atomic mass order in tablet form.
  • Mendeleev stated that "Element characteristics are a periodic function of their atomic weight" in his renowned periodic law.
  • The Periodic Table of Mendeleev is a table that Mendeleev created to list elements in the order of their atomic weights.

  • Mendeleev discovered that there were two elements with atomic weights between 65.2 and 75 because he found it very satisfying that the properties of the elements were more similar and closer to this level.
  • He also imagined having other elements with possessions similar to those of these other elements.
  • In the periodic table, he left a blank for these two elements until they were finally discovered in their true existence.

Learn more about Mendeleev's periodic table

brainly.com/question/11974961

#SPJ4

You might be interested in
__________ have an electric charge of -1.60 × 10-19 C (-e).
nignag [31]

Answer:

Electrons have an electric charge of -1.60 × 10-19 C

Explanation:

Neutrinos and Neutrons have 0 e charge.

Protons have an electric charge of 1.60 × 10-19 C

Historically, electrons were assigned a negative charge

6 0
2 years ago
Why are metals good conductors of heat and electricity
Novay_Z [31]

Electric current is the flow of electrons in a wire. ... They are no longer firmly held by a specific atom, but instead they can move freely through the lattice of positive metal ions

7 0
3 years ago
Read 2 more answers
What is the purpose of a salt bridge?
k0ka [10]

Answer:

A salt bridge refers to a device used to form an electrochemical cell by providing a means to support the free flow of ions between the oxidation and reduction half-cell components. A salt bridge facilitates corrosion because corrosive reactions typically occur in the presence of electrochemical cells.

Explanation:

5 0
2 years ago
1. Calculate the percent oxygen in H2SO4.
Mashutka [201]
I believe the answer is 65.254%
6 0
2 years ago
Given that kb for c6h5nh2 is 1.7 × 10-9 at 25 °c, what is the value of ka for c6h5nh3 at 25 °c?
lina2011 [118]

Answer: k_a for C_6H_5NH_3^+ at 25°C is 0.588\times 10^{-4}

Explanation: We are given k_b of C_6H_5NH_2 at 25°C which is 1.7\times 10^{-9}

To calculate the k_a of C_6H_5NH_3^+, we use the formula:

k_w=k_a\times k_b

k_w\text{ at }25^o=1\times 10^{-14}

Putting values in above equation, we get:

1\times 10^{-14}=k_a\times (1.7\times 10^{-9})\\k_a=0.588\times 10^{-5}

7 0
3 years ago
Other questions:
  • Generally, as you go from left to right on the periodic table, what happens to:
    12·1 answer
  • A teacher makes the following statement.
    13·2 answers
  • PLS I M IN HURRY.
    13·2 answers
  • The percentage by mass of Br in the compound
    5·2 answers
  • How much heat is required to raise the temperature of 88.5 g of water from its melting point to its boiling point?
    10·1 answer
  • 5. How many molecules are in 0.550 moles of N2O5?
    12·1 answer
  • Give me Investigating questions that have dependent variable independent variable and control variable
    7·1 answer
  • What season starts in the northern hemisphere as the suns direct rays strike the equator moving from the southern hemisphere to
    7·1 answer
  • Something that is bizarre fact about Radon that unique and relatively unknown by the general population??
    14·1 answer
  • While preforming an experiment involving colors and heat,Susan noticed that the black paper was warmer than the white piece of p
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!