Vocab I
The smallest particle that makes up matter.
What is an atom?
This particle has a negative charge.
What is an electron?
The number of protons in the nucleus of each atom of that element tells you this number.
What is atomic number?
This is the only nonmetal on the left side of the periodic table.
What is Hydrogen?
Which direction are the groups on the periodic table arranged in?
What is vertical?
The area where electrons stay in an atom.
What is the electron cloud?
Matter made up of only one type of atom.
What is element?
This is the most reactive family of metals and they have a 1+ charge in compounds.
What are alkali metals?
Elements that are typically found on the right side of the staircase.
What are nonmetals?
Element Name: Period 5, Group 2
What is a Strontium?
Negatively charged particles.
What is electrons?
What two pieces of information are needed to calculate the mass number?
What are protons and neutrons?
The family of nonmetals that are VERY unreactive and usually have a charge of zero?
What are noble gases?
Elements that have characteristics of both metals and nonmetals.
What are metalloids or semimetals?
Atomic number of the element in Period 4, Group 8
What is 26?
Positively charged particles in the nucleus.
What is protons?
This is the particle that determines atomic number.
What are protons?
This family can have multiple or more than 1 charge(s).
What are transition metals?
The majority of elements on the Periodic Table are characterized as _______________.
What are metals?
The element symbol of the element in Period 3, Group 18.
What is Argon?
Uncharged particles.
What is neutrons?
Positively charged, center part of the atom.
What is the nucleus?
Rows of elements are called ___________.
What are periods?
These are the two words for the vertical columns (up and down) of the periodic table.
What are groups and families?
The amount of protons of the element in Period 4, Group 2
What is 20?