Test analysis: the upper left corner of the element name is the atomic number, so the atomic number is 9, so A does not meet the meaning of the question; The middle is the element name, so the element name is fluorine, so choose B; The name of the element prefixed with "gas" is gaseous at room temperature, so C does not meet the meaning of the question; Below the element name is the relative atomic mass of the atom, so d does not meet the meaning of the question.