Mean
1(one) is a number. It represents a single entity.
no
The GCF refers to integers, not fractions.
one
A single, short vertical stroke represents 1.
An "expression" is anything that can be calculated to get a number, in other words, anything that represents a number, so that includes the numbers themselves.
The square root of 6 lies between 2 and 3.
The mass number in helium represents the total number of protons and neutrons in the nucleus of a helium atom. It is used to determine the mass of the atom and differentiate between different isotopes of helium.
The bond order of a single bond is 1. It represents the number of chemical bonds between two atoms. In a single bond, two atoms share one pair of electrons.
It is not. In cultures other than yours it is written differently. However, it is often a single line representing the single entity that the number represents.
The single number directly between those two numbers is 18.