Periodic Table
Halogens group number
What is group number 17?
The most reactive of all the groups on the periodic table
What is group 1?
The sharing of electron pairs between atoms.
What is a covalent bond?
Substances that exhibit some properties of both metals and non-metals.
What are metalloids?
A charged atom
What is an ion?
The horizontal rows on the periodic table
What is a period?
The maximum number of electrons allowed in the 3rd level of an atom.
What is 18?
Forms when a non-metal and a metal bond together.
What is a ionic compound?
The most unreactive elements on the periodic table.
What are noble gases?
An atom of the same element with different number of neutrons.
What is an isotope?
The vertical columns on the periodic table with elements of similar properties;
What is a family or group?
The valence electrons number for group 16
What is 6?
Used to show how elements form bonds so they can attain a stable number of electrons in their outer shell.
What is the octet rule?
Elements found in groups 3-12.
What are transitional metals?
The number that identifies the element
What is the atomic number?
The proton and electron number is represented by the .......
What is atomic number?
The alkali-earth metals valence electron number.
What is 2?
Molecules usually composed of two or more non-metals held together by a bond. These atoms share electrons.
What is a covalent molecule?
Substances that have the physical properties of luster, conductivity, malleability, and ductility
What is a metal?
Proton (+), electron (-), and neutron (neutral)
What are the three particles that make up an atom along with their charges?
The total number of electrons that an atom either loses or gains when it forms a chemical bond with another atom
What is oxidation number?
Depicts all of the valence electrons of the element.
What is a Lewis-Dot structure?
The number of pairs of electrons that are shared between two nitrogens.
What is 3?
They are gases, brittle, and poor conductors?
What are non-metals?
Formula for finding the number of neutrons of an atom.
What is the mass number-the atomic number of an element?