parts of an atom
What are the three parts of an atom?
protons
neutrons
electrons
Horizontal rows on the periodic table are called
periods
what is a molecule?
a group of atoms joined together
What types of elements form an ionic bond?
metal and non-metal
What is the study of matter, what it is made of, what its usual characteristics are, and how it reacts with other matter?
chemistry
protons have a _____ charge
Neutrons have a ______ charge
Electrons have a _______ charge
positive
negative
neutral / no
Vertical columns on the periodic table are called
groups or families
what is a compound?
a type of molecule with different elements joined together
What type of elements form a covalent bond?
the smallest piece of an element
atom
what makes up an atoms atomic number?
number of protons
elements on the periodic table can be classified as one of three things. what are they?
metal
non-metal
metalloid
Which statement is correct?
A. All molecules can be compounds, but not all compounds can be molecules.
B. All compounds can be molecules, but not all molecules can be compounds.
statement B
give an example of an ionic bond
is H20 a compound or molecule? explain
it is both because a compound is a type of molecule that has different elements.
what makes up an atoms atomic mass?
protons plus neutrons
The chemical symbol of an element is written in what certain way?
Uppercase, Lowercase
Give an example of a molecule vs a compound.
(you cannot use h2O as an example)
In an ionic bond, elements _____ electrons.
In a covalent bond, elements ______ electrons.
take, give
share
what is an element?
a substance containing one type of atom
how many electrons can fit in the inner shell? outer shell?
2, 8
the elements most similar to one another can be found in the same _________
group/family
what is the definition of a chemical formula (think about what you see)
the chemical symbols and numbers that make up a compound or molecule
an atom that has gained or lost an electron is called:
what does a subscript tell you?
The number of atoms of an element in a molecule