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Lisa [10]
3 years ago
13

Why does calcium have a larger atomic radius than magnesium

Chemistry
2 answers:
Lemur [1.5K]3 years ago
6 0

Answer: So To sum that up magnesium nucleus will attract the electrons more toward it and therefore, shrinking the size of the atom.

Explanation: Magnesium nucleus will attract the electrons more toward it and therefore, shrinking the size of the atom. Magnesium atom is smaller than Calcium atom because Calcium has more electron ( 20e− ) which will occupy more energy levels ( n=4 for Calcium versus n=3 for Magnesium).

mr_godi [17]3 years ago
4 0

Answer:

Down the group , atomic radius of atoms increase due to increase in number of shells there by increasing shielding effect and decreasing effective nuclear charge . ( effective nuclear charge pulls the valence shell closer to the nucleus)

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A sample of aluminum weighs 100 grams and has a volume of 37.03 cm. What is the density of
Alexxandr [17]

Answer:

2.7005 g/cm²

explanation: as we know density=mass/volume

6 0
3 years ago
Solve
stiv31 [10]

The volume of a gas that occupies 9 L at a temperature of 325K is 12.46L.

<h3>How to calculate volume?</h3>

The volume of a given gas can be calculated using the following Charle's law equation:

V1/T1 = V2/T2

Where;

  • T1 = initial temperature
  • T2 = final temperature
  • V1 = initial volume
  • V2 = final volume

  • V1 = 9L
  • V2 = ?
  • T1 = 325K
  • T2 = 450K

9/325 = V2/450

325V2 = 4050

V2 = 4050/325

V2 = 12.46L

Therefore, the volume of a gas that occupies 9 L at a temperature of 325K is 12.46L.

Learn more about volume at: brainly.com/question/2817451

7 0
2 years ago
The total pressure of gases a, b, and c in a closed container is 4.1 atm. if the mixture is 36% a, 42% b, and 22% c by volume, w
Natali [406]

 The  partial  pressure of  gas C  is 0.902  atm


  calculation

partial pressure of gas c  =[( percent by volume of  gas   C /  total  percent)   x total pressure]


percent  by  volume of gas C= 22%

Total   percent  = 36% +42%  + 22%  = 100 %

Total  pressure  =  4.1 atm


partial  pressure  of gas C  is therefore =  22/100 x 4.1 atm = 0.902  atm

3 0
4 years ago
Read 2 more answers
3 br 2 + 2fei3 = febr3+3i2 is what type of chemical reaction
ki77a [65]

Answer:

single replacement reaction

Explanation:

the iron molecules would rather react with Bromine instead of Iodine. So, the iron molecules switch over to bromine leaving the iodine molecules by themselves.

7 0
4 years ago
The Earth and moon have different forces of gravity.
san4es73 [151]

Answer:

volume

Explanation:

the mass is the same on earth as it is on the surface of the moon. The weight is determined by the force of gravity. The density is the thickness. But the volume is not a factor.

4 0
3 years ago
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