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
GREYUIT [131]
3 years ago
13

Why are the elements 57 through 71 and 89 through 102, found separately at the bottom of the table?

Chemistry
1 answer:
Dovator [93]3 years ago
8 0
Elements from 57 to 71 are Lanthanoids and from 89 to 103 are Actinoids. Simply I would say Actinoids have less similarity in chemical properties than Lanthanoids. On the other hands, Actinoids have randomized chemical strutural bonds.
You might be interested in
There be shows an electric
Delicious77 [7]

Answer:

first one is battery

second one is wires

7 0
3 years ago
Why reaction between phosphorus and oxygen produces four atoms of phosphorus and five atoms of oxygen
andreev551 [17]

Answer:

Reaction between an oxygen and  a phosphorus will produce oxides of phosphorus.

Explanation:

Reaction between oxygen and phosphorus produces four atoms of phosphorus with five atoms of oxygen. Sometimes it produces two atoms of phosphorus and five atoms of oxygen and sometimes four atoms of phosphorus and six atoms of oxygen. It does so depending upon the availability of oxygen. The size of phosphorus atom  interferes with the ability to form a double bonds to the other elements, such as nitrogen, oxygen, etc.

4 0
3 years ago
NEED ANSWER FAST
Korolek [52]

Answer: Option (c) is the correct answer.

Explanation:

When current passes through a wire then a magnetic field is formed. Therefore, when two wires carry current in the same direction then both the wires with have respective magnetic fields in the same direction and their total magnetic field will be large.

But when current between two wires flow in opposite direction then the magnetic field produced will also be in opposite direction. Therefore, both the magnetic fields cancel each other out. Thus, total magnetic field will be small.

As a result, wires which carry current in the opposite direction repel each other.


4 0
3 years ago
Read 2 more answers
Chemical properties of epoxide​
Bas_tet [7]

Answer:

Epoxides, also called oxiranes, have a three-membered ring structure with one oxygen and two carbon atoms.

Epoxides can be formed from alkenes by reaction with peroxy acids (MCPBA for example).

Epoxides can be formed from halohydrin molecules by reaction with a base, which causes an intramolecular Williamson ether synthesis.

Explanation:

Epoxide, cyclic ether with a three-membered ring. The basic structure of an epoxide contains an oxygen atom attached to two adjacent carbon atoms of a hydrocarbon. The strain of the three-membered ring makes an epoxide much more reactive than a typical acyclic ether.

5 0
3 years ago
Read 2 more answers
If an unknown substance CANNOT be broken down into simpler substances, it is
Fynjy0 [20]
If an unknown substance CANNOT be broken down into simpler substances, it is AN ELEMENT made of one kind of atom.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the formal charge on the hydrogen atom in hbr? use the periodic table as needed?
    13·1 answer
  • Given the reaction at equilibrium n2(g) + 3h2(g) ↔ 2nh3(g) increasing the concentration of N2(g) will increase the forward react
    12·1 answer
  • Jenny places a strip of pH paper into a solution. When she removes the pH paper, it has turned yellow-green.
    12·2 answers
  • Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. what is the volume in liters of 3.46 kg of ethylene glycol?
    11·1 answer
  • The periodic table organizes the elements into a series of rows called what?
    9·1 answer
  • Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation y
    8·1 answer
  • HELP ME PLEASE
    15·1 answer
  • Five kilograms of liquid carbon tetrachloride undergo a mechanically reversible, isobaric change of state at 1 bar during which
    8·1 answer
  • How many electrons does a phosphorus atom need to achieve a noble gas configuration
    6·1 answer
  • Heat packs are used to relax muscles. Some heat packs contain iron in a small packet. To
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!