Atomic Theory Scientists
This scientist discovered the electron and developed the plum pudding/ Chocolate chip model
Who is JJ Thomson?
What do you call the same element with a different number of neutrons.
What is an isotope?
This element is found on group 2 period 4.
What is Calcium?
How many protons and neutrons does Iron-56 have?
26 protons and 30 neutrons
This is the scientist who determined the atom was mostly empty space by firing alpha particles (+ charge) at a piece of gold foil.
Who is Ernest Rutherford?
This particle has no charge and helps to keep the nucleus in tact.
What is a neutron?
Magnesium-25 has this number of neutrons
What is 13 neutrons?
When this element gains 2 electrons it has the noble gas configuration of Argon.
What is Sulfur
How many neutrons does Fluorine-19 have?
What is 10 neutrons?
This is the subatomic particle NOT found in the nucleus of an atom.
What is an electron?
How would you write an isotope of Oxygen atom with 10 neutrons? (Either notation is fine)
What is Oxygen-18?
What is 18O?
This atom has 30 electrons
What is Zinc
What would be an isotope of Mg with 3 more neutrons than most common isotope magnesium-24?
What is Magnesium-27
These 2 particles have a relative mass of 1 amu.
What are protons and neutrons?
The average atomic mass of all natural isotopes of chlorine
What is 35.453 amu
This ion has 30 electrons and 33 protons.
What is As3+?
Oxygens naturally occurring isotopes are oxygen-16, oxygen-17, and oxygen-18. Which is the most abundant isotope of oxygen.
What is Oxygen-16?
In chronological order, name the 5 main scientists who developed the atom and the 3 subatomic particles.
Who is Democritus, Dalton, Thomson, Rutherford, Chadwick
Electrons are most likely to be found in these.
This is part of the ________ __________ model.
(answer the the question and fill in the blanks)
What are orbitals?
What is quantum mechanical model?
The element with a mass # of 23 with 12 neutrons.
What is Sodium?
This cation in group 3 and period 5, has a noble gas configuration of ________ when it loses ________ electrons.
Identify the cation and fill in the blanks (3 answers)
What is Y3+? What is Krypton? What is 3?
What is the average atomic mass for the following? The first isotope has a mass number of 14 being 99.6% abundant in nature. The second isotope has a mass number of 15 being 0.04% abundant in nature.
14.007 amu