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
Xelga [282]
3 years ago
15

Someone pls pls pls help me with this question.

Chemistry
1 answer:
Arisa [49]3 years ago
3 0

\rm{\pink{\underline{\underline{\blue{REASON:-}}}}}

⭐ Elements in which the last electron enters any one of the five d-oribitals of their respective penultimate shells are called as <u>d-block</u><u> </u><u>elem</u><u>ents</u> .

⭐ But the last electron of Zn , Cd , Hg and Cn enters in the s-oribital of their respective ultimate shells rather than the d-oribitals of their respective penultimate shells . Therefore, these elements cannot be regarded as d-block elements .

☃️ But properties of these elements resemble to the d-block elements rather than s-block elements .

☃️ Therefore, to make the study of periodic classification of elements more rational, they are studied along with d-block elements .

✍️ Thus <u>on the basis of properties</u> all transition elements are d- block elements, but <u>on the basis of electronic configuration</u> all d -block elements are not transition elements .

You might be interested in
What is back titration?​
Yakvenalex [24]

Answer:

Back titration is a titration done in reverse; instead of titrating the original sample, a known excess of standard reagent is added to the solution, and the excess is titrated.

I hope it's helpful!

3 0
2 years ago
Dipole-induced dipole attractions exist between molecules of water and molecules of gasoline, yet these two substances do not mi
lana [24]

Gasoline is predominantly octane, C8H18.  Something like soap would be a great homogenizer.  Soap is composed of a long hydrocarbon chain with a tiny, highly polar tip on one end.  Usually, the soap is the anion of a salt, NaX.  This allows the polar end of the soap to stick to water, while the nonpolar end sticks to the oil.

\frac{kg*m*m}{m^3*s*\mu}=1=\frac{kg}{m*s*\mu}

\mu=\frac{kg}{m*s}

3 0
3 years ago
How many grams of O are in 675 g of Na2O
PIT_PIT [208]
I think it is .00005815
6 0
3 years ago
An example of basic research is A) the development of new plastics that can be recycled. B) the study of the relationship betwee
elena-s [515]

Answer:

C) the study of the composition of the atom.

Explanation:

A research can be defined as a systematic investigation or careful consideration of study with respect to a particular problem using scientific methods such as collection of data, documenting critical information, analysis of data, and the establishment of facts in order to reach new conclusions.

Similarly, a basic research is an approach to research that's typically theoritical and it's aimed at developing a theory, searching for the truth or gain a better understanding about a phenomenon, subject, or basic laws on nature.

In this context, an example of basic research is the study of the composition of the atom.

An atom can be defined as the smallest unit comprising of matter that forms all chemical elements. Thus, atoms are basically the building blocks of matters and as such determines or defines the structure of a chemical element.

Generally, atoms are typically made up of three distinct particles and these are protons, neutrons and electrons.

5 0
2 years ago
Complete the statement about the environment and its components.
borishaifa [10]

the environment is Healthy

3 0
2 years ago
Other questions:
  • Gas particles are pumped into a rigid steel container at a constant temperature. Which statement describes the change in pressur
    15·1 answer
  • 3) List two other names for P-waves and for S-waves.
    10·1 answer
  • Aspirin is usually packaged with
    13·1 answer
  • .. What is the volume of the solid in the figure? Show your work.
    7·1 answer
  • I need help with the question in the photo!!
    6·2 answers
  • Abcdefghijklmnopqrstuvwxyz
    6·2 answers
  • Which sentence best describes why MnSO4→MnO+SO3 is not a synthesis reaction?
    10·1 answer
  • True or false; when something heats up, New energy is created, and when something cool down, Energy is destroyed.
    9·1 answer
  • Consider the reaction.
    14·1 answer
  • 16. A sequence of star colors frorn hottest to coolest is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!