Atomic structure
Identify the three parts of an atom and their charges.
what is the proton (+), electrons (-),neutrons (0)
what are metals
malleable ductile shiny and conductive are properties of this class of elements
what are the metals
More than 90 of the elements belong to this class on the periodic table
what is an element
this pure substance cannot be broken down or separated into simpler substance by physical or chemical means
What is the protons and the electrons?
These two substance partials have opposite charges and keep them the atoms natural.
what are metalloids
these semi-conductors can be found bordeing the zigzag line between the metals and nonmetals
what are the noble gases
this group of elements have a full outer shell and do not usually react with any other elements
what is the atomic number or numbers of protons
this number is used to identify an elements and identify an element and is equal to the number of protons in its nucleus
most of the mass of the atom comes from these two partials located in the nucleus
what are nonmetals
most of these elements in this class are gases brittle poor conductors and dull
what are metals metalloids and nonmetals
in what order are the three major classes of the periodic table arrange form left to right
what are sodium and chlorine
identify the elements in the following formula:NaCl
what is a ion
this is a charged particle forms when an atom gains or looses an electron.
what are transition metals
located between the alkali earth metals and born group these 10 groups do not have individual names but contains valuable metals such as gold silver and copper
what is the best family of group
because they share similar chemicals and physical properties elements are placed in one of these 18 vertical columns
what is hydrogen (H)
this element does not belong to any one group on the periodic table because it has properties of both metals and nonmetals
What is a isotope
this is an atom that has the same number of protons as other atoms of the same electrons do but has a different number of neutrons
what are the lanthanides and actinides
these radioactive transition metals belong in periods 6 and 7 but have been placed at the bottom of the table to make it eraser to read
what are the valence electrons
a periodic square contains these four pieces of information about every element same number of these particles in their outer energy level
What is...Protons =19, electrons =19, and neutrons=20?
use the periodic table to figure out how many protons,neutrons and electrons in potassium (K)