Advertisements
Advertisements
प्रश्न
What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons ?
Advertisements
उत्तर
The particle that contains 10 electrons, 11 protons and 12 neutrons is a positively-charged sodium ion (Na+).
APPEARS IN
संबंधित प्रश्न
Name the following radicals :
HC03
Write the names of `"CuCo"_3` compounds :
Write the names of ZnS compounds :
A liquid compound X of molecular mass 18 u can be obtained from a number of natural sources. All the animals and plants need liquid X for their survival. When an electric current is passed through 200 grams of pure liquid X under suitable conditions, then 178 grams of gas Y and 22 grams of gas Z are produced. Gas Y is produced at the positive electrode whereas gas Z is obtained at the negative electrode. Moreover, gas Y supports combustion whereas gas Z burns itself causing explosions.
- Name (i) liquid X (ii) gas Y, and (iii) gas Z.
- What is the ratio of the mass of element Z to the mass of element Y in the liquid X ?
- Which law of chemical combination is illustrated by this example ?
- Name two sources of liquid X.
- State an important use of Y in our life.
Fill in the following blank with suitable word:
The particle which is formed by the loss or gain of electrons by an atom is called..............
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
Fill in the following blank with suitable word:
A sulphide ion has negative charge because it contains less ....................... than ...................
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compounds.
Barium sulphate
State if the following element or radical is divalent?
Nickel
Atoms that carry positive or negative charges are called ______.
