Protactinium, with the chemical symbol Pa, is the chemical element with the atomic number 91.
Lawrencium (Lr) with the atomic number 103.
The atomic number for the element Protactinium (Pf) is 91.
The atomic weight of protactinium is 231,03588.
If an atom of thorium loses 2 protons, it would turn into an atom of protactinium. Thorium has an atomic number of 90, so losing 2 protons would change it to an atomic number of 88, which is protactinium.
It would be actinium with 89 protons and a mass of 230.
Lawrencium (Lr) with the atomic number 103.
The chemical symbol of protactinium is Pa.
The atomic radius of protactinium is 180 pm.
Protactinium has 91 electrons; the valence is 4 or 5.
The atomic number for the element Protactinium (Pf) is 91.
The resulting element is protactinium, atomic number 91.
The atomic weight of protactinium is 231,03588.
ProtactimAtomic Number: 91Atomic Weigt: 231.0Symbol: Pa
Protactinium has 91 protons and electrons; the number of neutrons is different for each isotope: Number of neutrons = Atomic Mass of the isotope - 91
The element with atomic number of 91 is protactinium, Pa. It is an inner transition metal.
Because the properties (chemical and physical) of protactinium are the general properties of metals.
If an atom of thorium loses 2 protons, it would turn into an atom of protactinium. Thorium has an atomic number of 90, so losing 2 protons would change it to an atomic number of 88, which is protactinium.