A variable is a symbol for a number that we don't yet know. It is usually a letter such as x or y.
if a number can change randomly it is called a variable
do you mean math equation? If you add a number to both sides of an equation you do not change it. That is called algebra
A number value that does not change is called a "constant." In mathematics and programming, a constant represents a fixed value that remains the same throughout a calculation or a program's execution, as opposed to a variable, which can change. Examples of constants include numbers like π (pi) or specific values defined in a mathematical context.
1.34 x 10 to the 6th power. And it is called scientific notation ... not number. 1340000 is just as scientific as 1,34 million.
VARIABLE. When this variable has a fixed number assigned to it and does not change, it is called a "fixed variable".
No numbers change unless something happens to them. They are just called "numbers."
Such a number is often called a "constant".
if a number can change randomly it is called a variable
The only way to change the number of protons in an atom is with a nuclear reaction.
Ionic imbalance.
do you mean math equation? If you add a number to both sides of an equation you do not change it. That is called algebra
The common ratio.
It is called periodic law.
A sudden change in chromosomes is called a chromosomal mutation. This can involve alterations in the structure or number of chromosomes. Examples include deletions, duplications, inversions, or translocations.
chemical reactions are involved by the participation of electrons only.During chemical reaction number of protans remains as it is. No change in number of protans.Number of protans is also called atomic number.So no change in number of protans means no change in atomic number. That's why atomic number is not change during a chemical reaction.
Atomic numbers are determined by the number of protons an atom has. The mass number is determined by the number of protons and neutrons. While the number of protons can't change (as the element itself would change), neutrons can and do vary. These are called isotopes.
A number value that does not change is called a "constant." In mathematics and programming, a constant represents a fixed value that remains the same throughout a calculation or a program's execution, as opposed to a variable, which can change. Examples of constants include numbers like π (pi) or specific values defined in a mathematical context.