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2 years ago

Among K, Ca and Ba, which element possess low ionization energy?

Chemistry

1 answer:

deff fn [24]2 years ago

5 0

Among the elements Barium has the lowest Ionization Energy.

<h3>What is Ionization Process ?</h3>

The process by which any neutral atom gets converted into electrically charged by gaining or losing electron is called Ionization Process.

K is an alkali metal it has to lose one electron to attain stable electronic configuration of an inert gas

For removing second electron , a stable configuration has to be broken and so will require high amount of energy.

Ca and Ba are alkaline earth metals.

They both have to lose 2 electrons to attain stable electronic configuration of noble gas.

They have low Iow Ionization Energy as compared to K.

Ca has higher Ionization Energy as compared to Ba because when we move down the periodic table , The ionization energy decreases.

Hence , Among the elements Barium has the lowest Ionization Energy.

To know more about Ionization Process

brainly.com/question/6638422

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What causes high and low tides on Earth? A. The moon's gravitational pull on Earth causes water to bulge on two sides of Earth.B

sveticcg [70]

Answer:

The moon's gravitational pull on Earth causes water to bulge on two sides of the Earth.

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3 years ago

Calcium chloride, CaCl2, is commonly used as an electrolyte in sports drinks and other beverages, including bottled water. A sol

zhannawk [14.2K]

Answer:

Mole percent of $CaCl_{2}$ in solution is 1.71%

Explanation:

Number of moles of a compound is the ratio of mass to molar mass of the compound.

Molar mass of $CaCl_{2}$ = 110.98 g/mol

Molar mass of $H_{2}O$ = 18.02 g/mol

Density is the ratio of mass to volume

So, mass of 60.0 mL of water = $(60\times 0.997)g=60.8g$

Hence, 6.50 g of $CaCl_{2}$ = $\frac{6.50}{110.98}moles$ of $CaCl_{2}$ = 0.0586 moles of $CaCl_{2}$

60.8 g of $H_{2}O$ = $\frac{60.8}{18.02}moles$ of $H_{2}O$ = 3.37 moles of $H_{2}O$

So, mole percent of $CaCl_{2}$ in solution = \frac{n_{CaCl_{2}}}{n_{total}}\times 100% = $\frac{0.0586}{0.0586+3.37}\times 100$ % = 1.71%

5 0

4 years ago

Igneous rock can _____ to form metamorphic rock.

Ne4ueva [31]

Hello,

Question- Igneous rock can _____ to form metamorphic rock.

A. melt

B. harden

C. heat up

D. weather

Answer- Your answer is C. Heat up

Why- Any rock can become any rock igneous metamorphic or even condemnatory just by heating up but when it melts it becomes lava and the rock cycle starts all over again.

Important- If my answer was enough to help uou please mark me as Brainliest, Leave a thanks, and Rate my answer 5 stars thank you and have the best day ever!

3 0

4 years ago

Read 2 more answers

Prepare 15 mg/dl working standard solution from a stock solution of 20 mg/dl. State the volume of diluent and dilution.

Anastasy [175]

Preparing 15 mg/gl working standard solution from a 20 mg/dl stock solution will require the application of the dilution principle.

Recalling the principle:

initial volume x initial molarity = final volume x final molarity

Since we were not given any volume to work with, we can as well just take an arbitrary volume to be prepared. Let's assume that the stock solution is 10 mL and we want to prepare 15 mg/gl from it:

Applying the dilution principle:

10 x 20 = final volume x 15

final volume = 200/15

= 13.33 mL

This means that in order to prepare 13.33 mL, 15 mg/l working standard solution from 10 ml, 20 mg/dl stock solution, 3.33 mL of the diluent must be added to the stock solution.

More on dilution principle can be found here: brainly.com/question/11493179

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3 years ago

What volume in L of a 0.32 M Mg(NO3)2 solution contains 45 g of Mg(NO3)2?

ludmilkaskok [199]

First we need to find the moles of Mg(NO_3)_2,

$45g Mg(NO_3)_2\times\frac{1mol Mg(NO_3)_2}{148.32g}= 0.3034 mol$