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Use the Periodic Table to get Atomic number (19), and atomic mass (39.1).
The atomic number is the number of protons, and in the neutral atom, also the number of electrons: 19.
The Atomic Mass is the sum of the mass of the protons and neutrons, 39.1. Subtract the number of protons (use integers) from the atomic mass, 39 - 19 = 20, which is the number of neutrons.
Protons = 19
Neutrons = 20
Electrons = 19
What else can I help you with?
What is K2Cr2O2?
potassum dicromate
What is the amount of electrons in argon?
The amount of electrons is Argon is 18.
When lead nitrate solution is added to potassum iodide solution what gas does it emit?
it doesn't
Is electricity is amount of electrons?
Electricity is the flow of electrons
What is the number of protons neutrons and electrons of radon?
There are 88 protons/electrons in radium. There are 138 neutrons.
Electrons with the least amount of energy are found were?
These are the external electrons.
Do all nonmetals have a completelyfull Valence shell of electrons?
There is no set amount of valence electrons for nonmetals. The amount of valence electrons a nonmetal has is determined by the number of electrons on the outer shell of the atom.
What food does one stay away from if their potassum level is too high?
Bananas and green, leafy veggies.
When sunlight excited electrons in chlorophyll how do the electrons change?
the electrons gain a huge amount of energy
Is the amount of protons the same as the amount of electrons?
the atomic number
Is potassium the same as plasma?
Not even close. potassum is a chemical element. Plasma -as in blood - is a solution of numerous elements.
What is the total amount of electrons and valence electrons in francium?
Francium has 87 electrons; one is the valence electron.
