That would be the alkali metal, Potassium. Its chemical symbol is "K" because it used to be called, "Kalium", which is Latin for 'Alkali'.
This gas is likely to be fluorine (F), which has a mass number of 19. Fluorine is a highly reactive, pale yellow gas that is part of the halogen group on the periodic table. It is commonly found in compounds rather than in its pure elemental form due to its high reactivity.
Potassium is an element with the chemical symbol K and atomic number 19. It is a soft, silvery-white metal that belongs to the alkali metal group of the periodic table.
The 19th element is potassium, which has the atomic symbol K. It has 19 electrons, including one valence electron that can be easily lost.
It contains 10 protons and 10 electrons (no. of protons =no. of electrons in ground state) Number of neutrons=Mass number of element- number of protons =19-10 =9
Total up the number of electrons. It appears to be 19, therefore, it likely corresponds to the 19th element on the periodic table, potassium.
K, or potassium, has a mass number of 19. Fluorine is a non metal element. Mass number of it is 19. No, mass number for potassium is not 19. That is the atomic number.
Fluorine is a non metal element. Atomic mass number of it is 19.
19
Potassium
fluorine
The fluorine-19 isotope.
Fluorine is a metal element. Atomic Mass of it is 19.
Pottasium is a metal element. atomic number of it is 19.
Potassium does.
Fluorine is a meta element. Atomic mass of it is 19.
The element with 19 protons is potassium, which is represented by the symbol K on the periodic table.
Potassium (K) contains 19 electrons.