0
No sodium has 11 electrons which means its valence are in the 3s2 orbit
while Calcium has 20 electrons its valence electrons are in the 4s2 orbit which is much larger in terms of atomic radii
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Why does the change for the atomic radii of elements in period 3 from sodium to argon look similar to period 2?
Because the trend is the same. Atomic radius decreases from left to right across a period.
Why calcium chloride added in sodium chloride to lower the melting point?
The heat of dissolution for calcium chloride in water is greater compared with the same paremeter for sodium chloride; consequently the process of dissolution need more heat from the environment and the freezing point of the water solution is lower.
Are sodium polyacrylate and sodium percarbonate the same thing?
NO.
Which other elements contain the same number of atomic shells as sodium?
All of the others in the same row of the Periodic Table as sodium.
Why sodium and hydrogen ions do not diffuse at the same rate?
why sodium & hydrogen ions do not diffuse at the same rate?
Is sodium and calcium in the same family?
no. it is not in the same metal family
Why standard reduction potential of potassium rubidium and cesium are nearly same?
they belong to group I and almost have same atomic radii and they have same tendency to lose electron.
Why is soap soluble in the presence of sodium ions but not calcium ions?
Nearly all sodium salts are soluble in water. Most calcium salts aren't. calcium salts of the same fatty acids that make up potassium and sodium soaps are not water soluble. Dissolved calcium and magnesium are the two most common minerals that make water "hard." The degree of hardness becomes greater as the calcium and magnesium content increases. Bathing with soap in hard water leaves a film of sticky soap curd on the skin
What statement is correct A. Sodium (Na) and calcium (Ca) are in the same group. B. Sodium (Na) and calcium (Ca) are in two different periods. C. Sodium (Na) and calcium (Ca) are both nonmetals. D. S?
B statement is correct.
Is sodium hydrogen carbonate the same as calcium?
No. Sodium hydrogen carbonate is better known to most people as baking soda.
What is the product of calcium chloride and sodium chloride?
There is no reaction between them as they have same chloride anions.
Are two radii of a circle congruent?
Yes. All radii of the same circle have the same length.
Is salt and calcium chloride the same?
Common table salt is sodium chloride, which is different from calcium chloride. However, calcium chloride is a remember of a class of compounds known as salts.
How do the lengths of two radii of the same circle compare?
The sum of two radii of a circle is the same as the diameter of the circle.
Is sodium bicarbonate the same as salt?
No,salt is a compound of sodium and chlorine. Sodium bicarbonate is a compound of hydrogen carbon oxygen and sodium. It also is used to reduce acidity where as salt kills bacteria.
Could sodium chromate be used instead of potassium chromate?
Yes, because chemical properties of sodium and potassium ions are nearly same.
Is Sodium Bicarbonate and Agricultural Lime the same thing?
No, the main componant to Agricultural Lime is Calcium Carbonate rather than sodium, making them chemically different.
