Answer:
Correc option: 
Explanation:
size of atom : it says somthing about how many shell present in a particular atom or ion and it can also be evaluated on the basis of radius of atom.
Br^- and Kr has highest number of shell as compared to other group of species .
Na ,S , Mg ,P all are from 3rd period but Kr and Br^- in the 4th period so size of species of this group will more,
Size increases on increasring the shell number
Answer:
Acceleration is the rate of change of velocity with time. ... Acceleration occurs anytime an object's speed increases or decreases, or it changes direction. Much like velocity, there are two kinds of acceleration: average and instantaneous. Average acceleration is determined over a "long" time interval.
Explanation:
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.
Answer:
Explanation:
Charles law states that "the volume of a fixed mass of gas varies directly as its absolute temperature if the pressure is constant".
This law is a derivative of the kinetic molecular theory of gases.
- The law explained shows that as the temperature of gases increases the volume of gases increases.
- When gases are heated the average kinetic energy of the molecules increases.
- The molecules are independent of one another and they begin to expand out as their velocity surges.
- They take up more spaces in this way.
The reaction of sodium hypochlorite (NaOCl, bleach) with iodide ion (sodium iodide) leads to the formation of electrophile. The I⁺ ion formed in this reaction is a strong electrophile that reacts quickly in an electrophilic aromatic substitution reaction.
NaOCl + NaI = I⁺
