Science Semester Exam Review Fall 2015

What is matter?

What are the states of matter?

Metals are all elements to the RIGHT of the staircase.

Alkali metals are the MOST reactive elements because they only have one valence electron.

The number of electrons in an atom is the same as it's number of __________

Molecules are constantly moving, but not always from place to place is the ___________

Rounding the atomic mass then subtracting the number of protons will give you ____________

The number of protons in an atom of that element is 

Homogeneous mixtures _______________.

What are the rows called in the periodic table?

What charge do Neutrons have?

What charge do Electrons have?

What charge do protons have?

____ Contains only one type of atom, molecule, or compound: containerof H₂, container of H₂O

Elements in the same group or family have__________ in common.

________ are generally dull in appearance, brittle, and poor conductors of heat and electricity

The atomic number is the number of _________ in an atom of that element.

What are the columns called in the periodic table?

What is condensation?

Each square for an element contains the _____, atomic mass, symbol, and name of the element

What is Melting?

Metals are usually shiny, malleable, ductile, and usually solid at room temperature. 

Mettaloids have some characteristics of both metals and nonmetals and are semiconductors.

What is freezing?

Heterogeneous Mixtures _____________

Metals make up more than _____ % of all elements.

What is an isotope?

The Periodic Table of Elements is arranged by __________ number of protons

The atomic mass of an element is the number of protons + _______________