Structure of Atoms
The three main subatomic particles that make up atoms.
What are protons, neutrons, and electrons?
Subatomic particle that varies to make ions.
What are electrons?
This scientist discovered the electron using a cathode ray tube.
Who is JJ Thomson
Subatomic particle that varies to form isotopes.
What are neutrons?
Rows on the periodic table.
What are periods?
Protons plus neutrons
What is atomic mass?
Anions
What are negative ions?
His 1911 "gold foil" experiment revealed that atoms are mostly empty space with a dense nucleus
Who is Ernest Rutherford
Atomic value that is different between isotopes of the same element.
What is atomic mass?
Group 17
What are the halogens?
The mass of a proton.
What is 1amu
Number of valence electrons for group 2 atoms.
What is 2?
This scientist proposed that atoms are indivisible, solid spheres in 1803
Who is John Dalton
Phosphorus is number 15 on the periodic table and has a mass of 30.97. Most isotopes of phosphorus will have this number of neutrons.
What is 16?
Have luster, and are ductile and malleable.
What are transition metals.
This is why atoms are neutral.
What is they have the same number of protons and electrons?
The net charge of an ion with 8 electrons and 10 protons
What is +2?
According to the Bohr Model the first energy level can hold a maximum of this many electrons
What is 2
Neutrons have the same mass as this subatomic particle.
What is the proton?
Increases as you move down a group on the periodic table.
What is electrical conductivity, atomic radius, or number of energy levels?
These subatomic particles are found in the nucleus
What are protons and neutrons?
Group of elements that typically form no ions.
What are the Noble Gases?
The Scientist who discovered the Neutron
Who is James Chadwick
On the periodic table, the mass of all the isotopes of an element.
What is average atomic mass?
Elements that are identified as metalloids, or semiconductors.
What are germanium, arsenic, tellurium, boron, silicon, antimony, polonium? (Name five)