Elements in the same period have the same…

Answers

Answer 1

Answer:

Elements in the same period have the same (number of electron shells)


Related Questions

how do the melting points of enantiomers compare to each other? how do the melting points of diastereomers compare to each other?

Answers

Melting points of enantiomers will not compare to each other as they have same M.P. and Diastereoisomers are compared on the basis of melting point.

What are steroisomers?

Stereoisomers are those isomers which are having the same molecular formula but different spatial arrangemet of atoms within the molecule.

Enantiomers: Enantiomers are pair of two stereoisomers which are having mirror image of each other, but are not superiposable. They have the same melting point so we can not compare enantiomers on the basis of their melting point.Diastereoisomers: Diastereoisomers are pair of those stereoisomers which are not having mirror image of each other, but are superimposable.They have different physical and chemical properties, so it can be compared on the basis of melting point.

Hence, only diastereoisomers are compared on the basis of melting point.

To know more about stereoisomers, visit the below link:

https://brainly.com/question/7063755

what is the molar mass of dimethylglyoxime, c4h8n2o2?

Answers

Answer:  116.12 g/mol

Explanation:

The molar mass of a compound can be calculated by finding the molar of the individual atoms that combine to make the compound.

Molar mass of compound =

         ∑ (molar mass of element × number of atoms of the element)

∴ Molar mass of dimethylglyoxime

                 = 4C + 8H + 2N + 2O

                 = [(4 × 12.011) + (8 × 1.0080) + (2 × 14.007) + (2 × 15.999)] g/mol

                 = 116.12 g/mol

 ∴ the molar mass of dimethylglyoxime = 116.12 g/mol

Magnesium has an atomic (proton) number of 12 and a mass number of 24.

How many magnesium atoms are there in 2 moles of magnesium? HELPPPPP

Answers

Answer:

1.2044x10^24 atoms

Explanation:

one mole of any element has 6.022x10^23 atoms

so 2 moles is just multiplying avogadros number by 2

2 x ( 6.022x10^23)= 1.2044x10^24 atoms

Ned help with this question​

Answers

Answer:
Density = 3

Explanation:
Density = Mass/volume
D = 45/15
D = 3

I hope this helps :)
The density is 3 (or 3.0 counting significant figures) g/cm^3

Someone pls help me with this I will make you brain

Answers

Answer:

The answer should be primary pollutants from a stationary source.

Explanation:

Primary pollutants are emitted directly from a source and do not change in the atmosphere, and from a stationary source because manufacturing factories have a fixed location.

Hope this helped :D

I NEED HELP ASAP PLEASE

Answers

Answer: I am sorry i couldnt answer but this question is beyond me

Explanation:

Why can liquid metal be poured into a block-shaped mold?
Describe what happens to the shape and volume of the liquid
metal.

Answers

Answer:

yes

Explanation:

because

a regular solid box has a length of 5cm a width of 2cm and a height of 3cm what is the volume of the box

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Answer: 30 cm³

Explanation:

Volume of the regular solid = l × w × h

                                              = (5 cm × 2 cm × 3 cm)

                                              = 30 cm³

HELP FAST PLEASE !!!!

Answers

Explanation:

See the table above. Periods at the side, metals at the top, non metals to the right, group to the right of that

what is the relationship between gas particles and pressure​

Answers

Answer:

For a fixed mass of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional. Or Boyle's law is a gas law, stating that the pressure and volume of a gas have an inverse relationship. If volume increases, then pressure decreases and vice versa, when the temperature is held constant..

Explanation:

Hope it helps you..

Y-your welcome in advance..

(;ŏ﹏ŏ)(ㆁωㆁ)

When more gas particles enter a container, there is less space for the particles to spread out, and they become compressed. The particles exert more force on the interior volume of the container. This force is called pressure. There are several units used to express pressure.

There’s your answer

What is the scientific method webquest answers?

Answers

A method of procedure that has characterized natural sciences the 17th century, consisting in systematic observation, measurement, and experiments, and the formulation, testing, and modification of hypotheses.

I will make you brainlist answer this 1 question!
Direction: Answer the missing word​

Answers

Answer:

i think it's higher for both u can try

Explanation:

I think It would be shorter and higher

A space that is totally empty without any matter is called​

Answers

It’s called a vacuum

6C6H12O6

How many total atoms of oxygen are present in the molecules represented here?

Answers

Answer:

The answer is 36 atoms

Explanation: I took the test and i got 100%

There are 36 oxygen atoms in the representation "6 C₆H₁₂O₆".

We have the expression "6 C₆H₁₂O₆", which represents 6 molecules of C₆H₁₂O₆.

The subscripts are the atomicities of the element, that is, the number of atoms of each element in 1 molecule.

There are 6 atoms of oxygen per molecule of C₆H₁₂O₆. Considering that there are 6 molecules, the total number of atoms of oxygen are:

[tex]6 Molecules \times \frac{6\ O\ atoms}{1Molecule} = 36\ O\ atoms[/tex]

There are 36 oxygen atoms in the representation "6 C₆H₁₂O₆".

Learn more: https://brainly.com/question/16776664

Which of the following is an observation of a chemical property?


zinc reacts with hydrochloric acid


water boils at 100°C.

density of wood is 0.51 g/cm3

sand paper is roughly textured

Answers

Hehehehe she she did she she did she did did she did she did did did

KI + Pb(NO3)2 → Pbl2 + KNO3
This chemical reaction represents the reaction of
potassium iodide (KI) and lead nitrate (Pb(NO3)2) to
form lead iodide (Pbl2) and potassium nitrate (KNO3).
When correctly balanced, the coefficient for lead iodide
will be_________.

Select one:
3
6
2

Answers

Answer:   1

Explanation:

The balanced for the reaction is:

2KI + Pb(NO₃)₂ → Pbl₂ + 2KNO₃

When the equation is balanced, the number of atoms for each element on both the reactant and product sides of the equation are equal. This can be seen below:

      Reactant   Product

K         2                 2

I          2                  2

Pb      1                    1

N       2                   2

O       6                  6

Please tell me the answer, I will mark the first person to answer brainlist

Answers

Answer:

there would be not movement.

how many electrons must beryllium gain or lose to form stable ions

Answers

Explanation:

beryllium must loss 2 electrons to form a stable octet to its nearest noble gas Helium.

It can loss electron because it is a metal and is placed in 2group and 2 period in group of alkaline earth metals.

hope this helps you to.

how many electrons must beryllium gain or lose

Someone pls help me I will make you brain

Answers

Answer:

I think it's true

A compound is a hydrate when it

Answers

Hydrate, any compound containing water in the form of H2O molecules, usually, but not always, with a definite content of water by weight. The best-known hydrates are crystalline solids that lose their fundamental structures upon removal of the bound water.


When a strontium compound is heated in a flame, red light is produced. When a barium
compound is heated in a flame, yellow-green
light is produced. Explain why these colors are
emitted.

Answers

They are different colors because of the chemicals being mixed together

a major cause of rancidity of lipids in foods is exposure to

Answers

Answer:

exposure to the sun (heat and light) for long period of time and air (oxygen reacts with particles)

What do all of the cells have in common?
A) cell membrane B) endoplasmic reticulum C) flagellum D) nucleus

Answers

Your answer would be A

is the moon bigger than neptune

Answers

Answer:

Neptune is bigger than the moon

Explanation:

The circumference of the moon is 6,783.5 miles

The circumference of Neptune is 96,129 miles

This means neptunes circumference is about 14 times the size of the moons

How many grams of H2O is needed to produce 0.75 moles of ?​

Answers

Answer:

H2O2 + H2S → 2H2O + S? that is the answer

Which statement best describes a chemical change?
O A. A substance changes size or phase.
O B. Atoms are made and destroyed.
O C. The nuclei of atoms are rearranged.
O D. Substances form new substances.

Answers

A. A substance changes size or phase.
D is probably your best bet, at least from what I know.

The atomic number tells you the number of_______ in one atom of an element. It also tells you the number of_________ in a neutral atom of that element. The atomic number gives the indentity of an element as well as its location on the Periodic Table. No two different element will havr the________ atomic number

Answers

Explanation:

script ok script ok ok ok

Which phrase best describes electronegativity?(1 point)

A.) the partial charge an element carries in a covalent or ionic bond

B.) the number of electrons an element shares in an ionic bond

C.) the number of electrons an element has

D.) the relative strength with which an element attracts electrons in a chemical bond

Answers

Answer:

ELECTRONEGATIVITY is the tendency of an atom in the molecule to attract the bonded pair of electrons .

Explanation:

it might help you!!!!!!

Answer:

the relative strength with which an element attracts electrons in a chemical bond

Explanation:

I NEED OXIDATION AND REDUCED FOR BOTH ASAP PLS HELP (make sure its correct)

Answers

Have you tried the app chem balancer I found it a great help when working on chemistry

Which of the following areas would most likely see the largest amount of heat
flowing up towards the surface of Earth?

a. any area that just experienced an earthquake

b. an area of active volcanoes

c. all areas around the equator

d. heat never flows to the surface of the earth

Answers

Answer:

c. because all countries around the equator experiences heat

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