Atomic basics
What is the smallest unit of matter?
An atom
When an atom gains an electron, it becomes this type of ion.
An anion
This element is the first on the periodic table and has one proton.
This element is hydrogen
This is the center of the atom, which contains protons and neutrons.
This is nucleus
Atoms of the same element with different numbers of neutrons are called this.
This is isotopes.
This subatomic particle carries a positive charge and is found in the nucleus of an atom.
A proton
This type of ion formed when an atom loses an electron.
A cation
This element, with 6 protons, is the building block of organic life.
This element is carbon
Atoms of the same element that have different numbers of neutrons are called this.
This is isotopes
All isotopes of an element have the same number of these particles
A protons
This subatomic particle has a neutral charge and is also founding the nucleus
A neutron
This atom has a neutral charge because the number of protons equals the number of electrons.
A neutral atom
This noble gas has 8 electrons in its outer shell.
This element is neon
When an atom loses an electron, its overall charge becomes this.
A positive
Isotopes different in this number, which changes their mass.
A neutrons.
This subatomic particle has a negative charge and orbits the nucleus in energy levels.
A electron
The sodium atom typically forms a positive ion, Na+. What happens to the number of electrons a sodium ion compared to a neutral sodium atom?
It loses one electron.
This element has 3 protons and its used in batteries
This element is lithium
The number of protons in an atom is equal to this
Atomic number
Isotopes of an element always have the same atomic number but different...?
This is mass number
The number of these in an atom determines the element's identity.
A proton
This element forms a stable +2 ion by losing two electrons.
This is magnesium
This metal has 26 protons and is commonly used in construction and manufacturing
This element is iron.
This particle's movements within the atom causes energy levels or shells to form around the nucleus.
A electron
Carbon-12 and Carbon-14 are isotopes. This number is the same for both.
It is 6 (the number of their protons).