Which of the following sequences correctly represents the electron affinity of the halogens?
Electron affinity generally increases across a period and decreases down a group due to atomic size and electron-electron repulsion in smaller atoms. Among halogens, chlorine has a higher electron affinity than fluorine due to its larger size allowing easier addition of an electron, making the order I < Br < Cl < F.
In a question of division, if dividend is 21 times of remainder and quotient is 1/2 of divisor, if remainder is least multiple of 2 and 5 both then find...
Sum of the three numbers is 180. Ratio of the first number to second number is 4:7 and the ratio of second number to third number is 7:9. Find the secon...
A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
What is the average of first 32 multiples of 3.2?
Sum of squares of three consecutive numbers is 770. Find the sum of first and third number.
The sum of two numbers is 18 while the sum of their squares is 164. Find the sum of the cubes of those two numbers.
99² +? ² = 18826
When a number is increased by 20% then the number obtained is 36 less than thrice the original number. Find the original number.
The largest three-digit number which gives the same remainder 3 when divided by 4, 9, 6 is:
Find the remainder when the number (289n + 147) is divided by 17.
