Deuterium, (D, or 2H), also called heavy hydrogen.
Deuterium is an isotope of hydrogen.
In the simple hydrogen molecule,
there is one proton,
one electron,
and no neutrons,protons,electrons,
and neutrons being the elementary particles that make up the atom.).
while
Deuterium, on the other hand, is composed of one proton, one electron, and one neutron.
ND11-07-2023
Let's start by calling the two numbers we are looking for x and y.
x + y = 80
x - y = 20
x = 20 + y
20 + y + y = 80
20 + 2y = 80
2y = 60
y = 30
x + 30 = 80
X = 50
Sum: 50 + 30 = 80
Difference: 50 - 30 = 20
verbal
زبانی
"Spick and span" means extremely neat, clean, and often new or fresh
The answer should have been "for" .
This is a sentence of Imperative Sentence.
Imperative sentences are those which contain the sense of Request, Command, etc.
sincere work
مخلص کام
baleful
گستاخ
The difference between consecutive terms of the given series are respectively 5, 7, 9, 11 and 13.
Clearly, 34 is a wrong number and must be replaced by (24 + 11) i.e. 35.