All categories

1 year ago

what is the relationship between electron affinity and atomic radius? why do you think this relationship occurs?

1 answer:

8 0

Electron affinity increases from left to right within a period. This is caused by the decrease in atomic radius. Electron affinity decreases from top to bottom within a group. This is caused by the increase in atomic radius.

You might be interested in

Why is it necessary to mix any solution that does not show an immediate change?.

mr_godi [17]

Answer:

Explanation:

It is to keep the mixture homogeneous

5 0

2 years ago

24. All elements found on the left side of the Periodic Table of

SashulF [63]

Answer:

Metals are located on the left side of the periodic table and are generally shiny, malleable, ductile, and good conductors.

Explanation:

5 0

2 years ago

Read 2 more answers

Chemistry<br>oxidation number<br>

zloy xaker [14]

Answer:

sodium proxide

Explanation:

3 0

2 years ago

5000kg of ammonium nitrate per square kilometer of cornfield per year. how much nitric acid would be needed to make the fertiliz

Serggg [28]

$NH_3+HNO_3-> NH_4NO_3$

1 mole of nitric acid produce 1 mole of ammonium nitrate.

moles in 5000 kg of ammonium nitrate :

$n=\dfrac{5000\times 1000}{80}\\\\n=62500\ moles$ ( molecular mass of ammonium nitrate is 80 gm/mol )

So, number of moles of nitric acid required are also 62500 moles.

Mass of 62500 moles of nitric acid :

$mass = 62500\times 63 \\\\mass = 3937500\ gram\\\\mass = 393.75\ kg$

Hence, this is the required solution.

5 0

2 years ago

A voltaic cell using Cu/Cu²⁺ and Sn/Sn²⁺ half-cells is set up at standard conditions, and each compartment has a volume of 345 m

Nadusha1986 [10]

The mass of copper deposited is 9.589 g .

Given ,

A volatile cell using Cu/Cu2+ and Sn/Sn2+ half cells is set up at standard conditions ,and each compartment has a volume of 345 ml .

current = 0.17 A

time = 48 hrs =48 (60) (60) =172800 sec

we know , I = Q/t

thus , Q ,charge= It = 0.17 (17280) =29376 C

Then ,atomic mass of copper is 63 g

And valency of Cu is 2.

Thus , the equivalent mass of copper is 63/2 = 31.5

We know , 96500 coulombs of electricity produce copper = 31.5 g

29376 C of electricity produce copper =9.589 g

Hence , 9.589 g of Copper is deposited .

Learn more about charge here:

brainly.com/question/18102056

#SPJ4

4 0

1 year ago