In which block of the periodic table is chromium (Cr) found?

Answers

Answer 1

Answer:

The correct answer for above statement:

chromium is in group 6 d-block

Explanation:

The d-block elements are designated transition metals and have valence electrons in d orbital's. The f-block elements, observed in the two rows at the ground of the periodic table, are called inner transition metals and have valence electrons in the f-orbital's.

Chromium is a synthetic element with symbol Cr and atomic number 24. It is the first component in group 6. It is a steely-gray, glistening, dense and brittle metal which takes a high polish, resists smudging, and has a great melting point.

Answer 2

Answer: chromium is in group 6 d-block

Related Questions

What type of slide did you make using the letter 'e' in the lab?
How many grams of potassium chloride are produced if 25g of potassium chlorate decompose.
A balloon is filled with helium gas. What will happen as the average kinetic energy of the helium particles increases?The balloon will decrease in total volume.The temperature of the balloon will decrease.The gas atoms will strike the sides of the balloon more often.The gas inside the balloon will change into a liquid.
Which explanation best compares the movement of particles in three states of matter?
Someone help!! ( alkenes )

What are human made of

Answers

Dust, Water, Ogyen, Nitrogen.

A living person is made up of the following bodies.The gross bodyThe vital body The mental body The intellect or causal body The subtle ego or supracausal bodyThe soul or the God Principle in each of us

Which compound is a member of the same homologous series as C3H8?(1) CH4 (3) C5H8
(2) C4H8 (4) C6H10

Answers

The homologous series to which C3H8 belongs are the alkanes hence it is in the same group as CH4.

What is a homologous series?

The term homologous series refers to a family of molecules. The molecules in this family have the same functional group and differ from each other by -CH2-group.

The homologous series to which C3H8 belongs are the alkanes hence it is in the same group as CH4.

Learn more about homologous series:brainly.com/question/14953274

#SPJ2

CH4 is the compound of a member of the same homologous series as C3H8.

The gray balls represent _____ and have a neutral charge. protons neutrons electrons

Answers

Protons have a positive charge.Electrons have a negative charge.Neutrons have no (neutral) charge.

Answer: The correct answer is neutrons.

Explanation:

There are 3 subatomic particles that are present in an atom. They are: protons, electrons and neutrons.

Protons carry positive charge and are found inside the nucleus of an atom.

Electrons carry negative charge and are found around the nucleus in the orbits.

Neutrons does not carry any charge and are found inside the nucleus of an atom.

Hence, the correct answer is neutrons.

Why is nonpoint source pollution potentially more harmful than point source pollution?a.Nonpoint source pollution disrupts the water cycle.
b.Nonpoint source pollution is difficult to regulate.
c.Nonpoint source pollution comes from more than one source.
d.Nonpoint source pollution is more damaging to living organisms than point source pollution

Answers

A, nonpoint souce pollution is "a main problem with water quality."

Edgeuity says the correct answer is B

Consider the reaction: K2S(aq)+Co(NO3)2(aq)=2KNO3(aq)+CoS(s) what volume of 0.255 M K2S solution is required to completely react with 160 mL of 0.130 M Co(NO3)2?

Answers

The volume will be "81.6 mL".

The given reaction is:

$K_2S(aq)+Co(NO_3)_2(aq) \rightarrow 2KNO_3(aq)+CoS(s)$

The values are:

Molarity of $K_2S$ ,

$M_1 = 0.215 M$

Volume of $Co(NO_3)_2$ ,

$V_2 = 160 \ mL$

Molarity of $C0(NO_3)_2$ ,

$M_2 = 0.130 \ M$

As we know,

→ $V_1 = (M_2 V_2)/(M_1)$

By substituting the values, we get

$= (0.130* 160)/(0.255)$

$= (20.8)/(0.255)$

$= 81.6 \ mL$

Learn more:

brainly.com/question/3583591

based off of the chemical equation given, you know that K₂S reacts with Co(NO₃)₂ in a 1 to 1 molar ratio. That means that the number of moles of both reactants need to be equal for both of them to completely react with each other.

You can find the number of moles of Co(NO₃)₂ by multiplying 0.130M by 0.160L to get 0.0208 moles of Co(NO₃)₂. That means that you need to find a volume of 0.225M K₂S that contains 0.0208 moles of K₂S. You can do this by dividing the 0.0208 by 0.255 to get 0.0816L of K₂S. That means that you need 81.6mL of 0.255M K₂S to fully react with 160mL of 0.130M Co(NO₃)₂.

I hope this helps. Let me know in the comments if anything is unclear.

Which of the following cannot pass across the placenta?(a) oxygen
(b) waste materials
(c) blood
(d) nutrients

Answers

The placenta is the structure that allows for transfer of wastes, oxygen, and
nutrients between the mother and the fetus. The fetal blood comes extremely
close to the maternal blood in the placenta, but there is no intermingling of fetal
and maternal blood. The fetus and mother can even have, and often do have,
different blood types.

Oxygen cannot pass through the placenta

Other Questions

Which condition causes a hurricane to rotate?

Burning fossil fuels in a low oxygen environment will most likely produceA) carbon monoxide. B) hydrogen peroxide. C) sulfuric acid. D) methane.

What is the most common salt found in ocean water?

A fossilized animal that was killed by a volcanic eruption has 6.25 percent of its original amount of carbon-14 remaining; this radioisotope has a half-life of 5730 years. How long ago did the volcano erupt?a) 34,380 years agob) 22,920 years agoc) 17,190 years agod) 9,168 years ago