Subatomic Particles
The positively charged subatomic particle that controls the atomic number of an element.
What is a proton?
Proposed in 1803 as the structure of the atom with no subatomic particles.
This form of radioactive decay results in the formation of helium and a large metallic element.
What is alpha decay?
The columns on a periodic table are known as this.
What is a group?
This will always be the top number for writing nuclear equations.
What is the atomic mass?
The neutrally charged subatomic particles that control the mass of the atom.
Proposed in 1907 by Ernest Rutherford. The atom has a positive nucleus and electrons floating around it in varying shells.
What is the nuclear model?
Radioactive decay that results in an element with a larger atomic number than it started with.
What is beta decay?
The rows on a periodic table are known as this.
What is a period?
This will always goes be the bottom number when writing nuclear equations.
What is the atomic number?
The negatively charged subatomic particle that controls the charge of the atom.
What is an electron?
Proposed in 1918 by Ernest Rutherford after the discovery of positive particles in the nucleus. This shows the nucleus with positive particles and electrons circling them in different shells.
What is the proton model?
When an atom splits into smaller atoms and particles.
What is nuclear fission?
These elements conduct electricity and heat, are malleable and solid at room temperature.
What are metals?
This will always go to the right of the mass and number of an atom in nuclear equations.
What is the chemical symbol?
The location where the protons and neutrons of each atom reside.
What is the nucleus?
Proposed in 1932 by Heisenberg and Chadwick, this model has neutron and protons in the nucleus and a cloud around them to represent the electrons.
What is the electron cloud model?
When two atoms come together and form a larger atom.
What is nuclear fusion?
These elements are towards the right of the periodic table and posses no qualities of metals and are more often gases at room temperature.
What are nonmetals?
An emission of an electron from the nucleus and a neutron changing into a proton is what occurs in this form of radioactive decay.
What is beta decay?
Where the electrons reside on an atom.
What are electron shells?
Proposed in 1897-1904. The atom is positive fluid with electrons floating around it.
What is the plum-pudding model?
Nuclear reactions that occur many successive times and will continue to do so until the substance is completely used up.
What are nuclear chain reactions?
These elements have some of the properties of metals but some properties of nonmetals.
What are metalloids?
This is the measurement used for individual atoms.
What are atomic mass units/amu?