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Why does the change for the atomic radii of elements in period 3 from sodium to argon look similar to period 2?
The atomic radii of elements in period 3 from sodium to argon decrease due to a greater nuclear charge pulling electrons closer to the nucleus. This trend is similar to period 2 because both periods follow the same pattern of increasing nuclear charge as you move across the period, leading to a similar decrease in atomic radii.
Which alkaline earth metal is closely related to potassium?
Both calcium and potassium are alkaline earth metals, but potassium is in the same group (Group 1) as sodium and lithium while calcium is in Group 2. Their reactivity and properties are different, with potassium being more reactive and having a lower melting point compared to calcium.
Are sodium polyacrylate and sodium percarbonate the same thing?
No, sodium polyacrylate and sodium percarbonate are not the same thing. Sodium polyacrylate is a superabsorbent polymer used in diapers, while sodium percarbonate is a bleaching agent commonly found in laundry detergents.
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.
Would you expect sodium fluoride to produce the same color as sodium chloride and why?
Sodium fluoride would not produce the same color as sodium chloride. This is because the color of a compound is determined by its chemical composition and structure, and sodium fluoride and sodium chloride have different structures which result in different colors.
Is sodium and calcium in the same family?
no. it is not in the same metal family
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
Is sodium hydrogen carbonate the same as calcium?
No, sodium hydrogen carbonate is not the same as calcium. Sodium hydrogen carbonate is another term for baking soda, which is a compound made up of sodium, hydrogen, carbon, and oxygen. Calcium is a different element found in the periodic table with its own unique properties.
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.
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.
Why does the change for the atomic radii of elements in period 3 from sodium to argon look similar to period 2?
The atomic radii of elements in period 3 from sodium to argon decrease due to a greater nuclear charge pulling electrons closer to the nucleus. This trend is similar to period 2 because both periods follow the same pattern of increasing nuclear charge as you move across the period, leading to a similar decrease in atomic radii.
Which of the bases of sodium hydroxide calcium hydroxide potassium hydroxide magnesium hydroxide and ammonium hydroxide are alkalies?
Sodium hydroxide, potassium hydroxide, and calcium hydroxide are alkaline bases. Magnesium hydroxide can also be considered an alkali due to its basic properties. Ammonium hydroxide is a weak base and is not classified as an alkali in the same sense as the others.
In earth chemistry which elements has the same number of electron orbitals as the element sodium?
The elements in the same period as sodium on the periodic table have the same number of electron orbitals. So, phosphorus, sulfur, chlorine, argon, potassium, calcium, and scandium would all have the same number of electron orbitals as sodium.
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.
