Atoms
The basic building block of all matter.
What is an atom?
These paths surround the nucleus and hold electrons.
what are electron shells?
This table organizes all known chemical elements.
What is the Periodic Table?
The chemical symbol for Oxygen.
What is O?
The number at the top of an element box that represents the protons in the nucleus.
What is the atomic number?
The center of an atom that contains Protons and Neutrons.
What is a nucleus?
The maximum number of electrons the first shell can hold.
What is 2?
The element represented by the symbol Sn.
What is tin?
This is the chemical symbol for Gold.
What is Au?
In an element box, this symbol represents the element's name.
What is the chemical symbol?
Negatively charged particles that orbit the nucleus.
What are electrons?
For an atom to be stable, it typically wants 8 electrons in this shell (hint: the outermost shell).
What is the valence shell?
What is a group?
H is the chemical symbol for this element.
What is Hydrogen?
This number, sometimes found at the bottom of an element box, indicates the number of protons plus the number of neutrons.
What is the atomic mass?
The positively charged particles located in an atom's nucleus.
What is a proton?
The number of electrons the second shell can hold.
What is 8?
Horizontal rows on the Periodic Table are called this.
What are periods?
The element with the symbol Fe.
What is Iron?
Element boxes are found on this chart of elements.
What is the Periodic Table?
The total number of protons and neutrons in an atom is known as this.
What is the atomic mass?
How many electron shells are required to complete a Bohr Diagram for Sodium (Na)
What is 3?
This element is used as a standard for atomic weight, defined as having a mass of exactly 12 amu.
What is Carbon?
This is the chemical symbol for the element Lead.
What is Pb?
This information in an element box helps predict chemical bonding behavior (hint: the outer most electron shell.).
What is the number of valence electrons?