Atomic Discoveries
Atomic Structure
More atomic structure
Isotopes
Ions
100
This was the first "modern" scientist to come up with an atomic theory
Who is John Dalton?
100
The charge on an electron
What is -1?
100
What does the number 56 equal in the hyphen notation Iron-56?
What is Atomic Mass
100
32S has how many neutrons?
16
100
What makes an atom electrically neutral?
What is the the amount of protons are equal to the amount of electrons?
200
In Dalton's Atomic theory, he said that all elements consist of ______ that cannot be divided.
What is atoms
200
The location of protons in an atom.
What is the nucleus?
200
Isotopes of the same element have different _______________
What is masses or neutrons?
200
The mass of an atom with 10 protons and 9 neutrons, and 10 electrons
What is 19?
200
This is the name for a negatively charged ion
What is an anion
300
This Greek Philosopher proposed the idea that matter was not infinitely divisible. Believed matter was made of tiny particles called "atomos".
Who is Democritus?
300
The way to calculate the mass number.
What is atomic number + neutrons?
300
Which element was chosen as the standard that all other elements are compared to?
What is Carbon-12
300
The number of protons in an element with a mass of 152 and 89 neutrons
What is 63?
300
This is the name for a positively charged ions
What are cations.
400
Which scientist discovered the electron using a cathode ray tube.
Who is Sir William Crookes?
400
The mass of the neutron or proton.
What is 1 amu?
400
The weighted average of all the isotopes of that element
What is the average atomic mass?
400
The # of neutrons in an atom of Carbon with a mass of 13
What is 7?
400
How many electrons in the following ion:
Ca2+
What are 18 electrons
500
This experiment concluded that an "atom is mostly empty space," and "nucleus is small, dense, and positive".
What are the conclusions from the Gold Foil Experiment?
500
The mass of electrons
What is massless, zero, no mass
500
Where is most of the atom's mass located?
What is in the nucleus?
500
The mass of an isotope of Hydrogen with 2 neutrons?
What is 3?
500
What is the net charge on an ion that has 9 protons, 11 neutrons, and 10 electrons?
What is negative 1
600
The model of the atoms that consists of a spherically shaped atom composed of a uniformly distributed positive charge in which the individual negatively charged electron reside.
What is the Plum Pudding Model?
600
This is the term to indicate the number of protons in an atom
What is the atomic number?
600
The smallest particle of an element that retains the properties of that element is _______________
What is an atom?
600
Mass Number
What is the protons + neutrons?
600
How many electrons are in the following ion?
Al+3
What is 10?