Connect the two heaters in series. The supply voltage, what ever the value, will be split in half across the two heaters.
If the voltage is dropped by half across the two heaters in series, the wattage of each heater will be dropped to one quarter of the heaters wattage rating at its full voltage rating.
The new wattage's will be added together for a new total wattage for the circuit.
When you find the heaters working voltage use these two formulas; This one to find the resistance of the heater at its working voltage value, R = E (squared)/Watts. Then to find the watts at the reduced voltage value, W = E (squared)/R.
R being the heaters resistance in ohms from the first formula.
iron
Hydrogen with 0.09 density
the alkaline metals
Francium is located on the bottom left side of the periodic table of elements. Meaning it has the largest number of electron shells and lowest electron negativity. Thus having the biggest atomic size.
4f
iron
Oxygen is the element having atomic number 8. It is present in group-16.
Barium
#1 is Hydrogen
hydrogen
Hydrogen
Lead
No, helium has the second lowest density out of all the elements and with Hydrogen having the smallest density but it not being in the air it means the canister of air is heavier.
Hydrogen with 0.09 density
Helium
Helium has the highest first ionization energy and francium has the lowest first ionization energy.
Hydrogen has the lowest density of all elements. Density of it is 0.084 gm-3. It is a diatomic gas.