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Why do the atomic radii of the elements decrease across a period?

Moving across a period the number of protons and neutrons that make up the nucleus of the element increases. The increase in the number of positively charged protons results in an increased nuclear charge ce...
HK
Answered by Harry K. • Chemistry tutor
2563 Views

How far does Priestly present Sheila Birling as a naive character?

The character of Sheila Birling changes and grow throughout the play. She begins as a very sheltered young woman in a well off family. This is exemplified in the initial stage directions where Preistly descr...
IR
29144 Views

Write a recursive function to find the factorial of a number n.

def factorial(n): if n == 1 or n == 0: return 1 else: return n * factorial(n-1)
MB
Answered by Micah B. • Python tutor
1681 Views

In a class of 28 students, the average height of the 12 boys is 1.58 metres. The average height of the class is 1.52 metres. What is the average of the girls?

If we take x to be the total heights of the all the boys (1.58 * 12) be x and y to be the total height of all the students (1.52 * 28) then we may define the total heights of the girls, z, as y – x. If we di...
MB
Answered by Micah B. • Maths tutor
11174 Views

One apple costs 0.56p, if i wanted 12 Apples what would be my total?

Method1) 1 Apple = £0.56 10 Apples = £0.56 x 10 = £5.60 I want 12 Apples, so 10 Apples = £5.60 + 1 Apple = £0.56 + 1 Apple = £0.56 + Total: 12 Apples = £6.72 Method 2) 0.56 x 12 = £6.72 - Grid method multipl...
AM
Answered by Aqeeb M. • Maths tutor
2422 Views