It's Zirconium.
Vanadium Niobium Tantalum
The element hafnium belongs to the transition metals, and is a member of Group 4 of the modern periodic table. A link can be found below.
Element Name: Arsenic. Chemical Symbol: As.
The element in group 3 and period 4 of the periodic table is scandium, with the atomic number 21. It is a silvery-white transition metal known for its lightweight properties and is commonly used in aerospace industry and sports equipment.
iron
Iron (Fe): atomic number 26 and of course has 26 protons.
Vanadium Niobium Tantalum
Iron
The element hafnium belongs to the transition metals, and is a member of Group 4 of the modern periodic table. A link can be found below.
Isotope.
Element Name: Arsenic. Chemical Symbol: As.
Transition from a liquid to a gas - is evaporation.
To find the number of neutrons in an element, subtract the atomic number (number of protons) from the atomic mass number (rounded mass of the element). The atomic number can be determined from the element's position on the periodic table.
Ion
Number of protons + Number of neutrons = Mass number(number of nucleons)
The element in group 3 and period 4 of the periodic table is scandium, with the atomic number 21. It is a silvery-white transition metal known for its lightweight properties and is commonly used in aerospace industry and sports equipment.
iron