The Atom
The dense, positively charged center of the atom.
What is the nucleus?
An ion is formed when an atom gains or loses one or more of this subatomic particle.
What is an electron?
This term means a group of eight.
What is an octet?
Most of the elements on the periodic table are classified as this type of element.
What are metals?
This type of matter consists of only one type of atom.
What is an element?
What is an electron?
This is the term for a negatively charged ion.
What is an anion?
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Draw a Bohr Model for an atom of nitrogen.
Draw a Lewis Dot Diagram for an atom of nitrogen.
These unreactive elements are used to make neon signs.
What are the noble gases?
The particle formed when two or more atoms bond together.
What is a molecule?
An electron enters this state when it absorbs energy and moves further from the nucleus.
What is the excited state?
An ion with 8 protons and 10 electrons will have this charge.
What is -2?
Metals on the periodic table tend to lose electrons, forming this type of ion.
What is a cation?
Elements of the same group in the periodic table occupy the same column and share similar chemical properties because they have the same number of these.
What are valence electrons?
This term describes matter that has uniform characteristics throughout.
What is homogeneous?
The outermost electron shell of an atom.
What is the valence shell?
An ion with 11 protons and a charge of +1 has these many electrons.
What is 10 electrons?
Sulfur (element symbol: S) will gain these many electrons in order to achieve a stable electron configuration.
These highly reactive nonmetals all have 7 valence electrons.
What are the halogens?
These types of compounds have high melting points and can conduct electricity when dissolved in water.
What is an ionic compound?
Different isotopes of the same element differ in mass because of this subatomic particle.
What is the neutron?
An element with a very low electronegativity is likely to form this type of ion.
What is a cation?
In the covalent compound water, the oxygen atom has a complete octet of valence electrons, but each hydrogen does not. How many valence electrons does each hydrogen atom have?
What is two?
As you move from left to right along a period (row) of the periodic table, this characteristic describing the amount of energy required to remove an electron increases.
What is ionization energy?
Paint is an example of this type of mixture, since it is made up of solid pigment particles mixed throughout a binder.
What is a suspension?