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
LekaFEV [45]
2 years ago
10

In 1869, mendeleev created a periodic table in which elements were ordered by weight and placed in groups based on their chemica

l properties. mendeleev's decision to design the periodic table in this way allowed immediate advances in chemistry by.?
a.) providing an explanation for the reactive properties of the alkali metals
b.) providing a framework for models of electron configurations
c.) predicting the existence of a group of undiscovered inert gases
d.) predicting the properties of undiscovered elements in specific atomic weight ranges.
please explain
Chemistry
1 answer:
Tomtit [17]2 years ago
8 0

Answer:

D

Explanation:

Mendeleev periodic table predicted the properties of undiscovered element like the eka-aluminium.

You might be interested in
Q<br> 1 What is rusting?
blondinia [14]

Answer:

Rust is a chemical reaction (oxidation) of iron that occurs over a period of time as the bare metal surface comes in contact with oxygen present in the air or water. Rust "eats" away the metal, rendering it weak and fragile. ... Avoid contact with water or moisture.

8 0
3 years ago
Read 2 more answers
Why can groundwater only collect in rock that is porous?
Galina-37 [17]

Answer: Porous rock has gaps between rock particles that can fill with water. but i’m not 100% sure

Explanation:

5 0
2 years ago
Read 2 more answers
Which of the following correctly represents the transmutation in which a curium-242 nucleus is bombarded with an alpha particle
Alekssandra [29.7K]

<u>Answer:</u> The chemical equation is written below.

<u>Explanation:</u>

Transmutation is defined as the process in which one chemical isotope gets converted to another chemical isotope. The number of protons or neutrons in the isotope gets changed.

The chemical equation for the reaction of curium-242 nucleus with alpha particle (helium nucleus) follows:

_{96}^{242}\textrm{Cm}+_4^2\textrm{He}\rightarrow _{98}^{245}\textrm{Cf}+_0^1\textrm{n}

The product formed in the nuclear reaction are californium-245 nucleus and a neutron particle.

6 0
3 years ago
The molar mass of Beryllium (Be)
e-lub [12.9K]
The molar mass of Beryllium is 9.012182 u (symbol I can't put down) 0.000003 U
8 0
3 years ago
Is iornIInitrate ionic or covalent
kondaur [170]

Answer:

Iron (II) nitrate is ionic compound

Explanation:

Formula:

Fe(NO₃)₂

Iron (II) nitrate is ionic compound.

Its molecular mass is 179.85 g/mol.

NO⁻₃ is anion while Fe⁺² is cation.

Iron loses its two electron which is accepted by nitrate.

Its molecular formula can be written as FeN₂O₆.

Its color is pale green.

Its melting point is 333.65 K.

It is para magnetic compound.

it is mostly present in non hydrated form.

It is also known as ferric nitrate.

It is used to form sodium amide.

Its is also used catalyst.

7 0
3 years ago
Other questions:
  • What are the empirical formula and empirical formula mass for N2S3
    15·1 answer
  • How does air resistance affect the velocity of a falling object ?
    6·1 answer
  • Objects that can bew seen only under magnification
    15·1 answer
  • Can somebody answer this question for me it might be easy for you answer part 1,2,and 3
    9·2 answers
  • The amplitude of a wave is measured from
    6·1 answer
  • Which of the following is NOT a characteristic of metals?
    5·1 answer
  • What type of reaction produces a metal from its metal oxide
    5·1 answer
  • PLEASE HELP MY TEACHER IS GOING TO SEE ME AFTER CLASS
    7·1 answer
  • The table below shows the precipitation in four locations:
    14·2 answers
  • 2. Use the graph below to answer the following questions.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!