Vocabulary
A horizontal row of elements in the periodic table
What is a period?
The modern periodic table is arranged in order of
What is increasing atomic number?
A positively charged subatomic particle found in the nucleus of an atom
What is a proton?
Atoms or groups of atoms that have an electrical charge due to a different number of protons and electrons
What is an ion?
The total number of protons and neutrons in the nucleus of an atom is called the
What is atomic mass?
The number of protons found in the nucleus of each one of its atoms is also called this
What is atomic number?
As you move down a group of the periodic table, atomic size generally
What is increasing?
Any atom or group of atoms with a negative charge
What is an anion?
The subatomic particle that plays the greatest role in determining the physical properties of an element is
What is the electron?
Reactivity in metals increases...
What is going to the left and down a family?
When metals can be beaten into sheets.
What is malleable?
The non-metal atom with the highest reactivity on the Periodic Table is
What is flourine?
A cation has what type of charge?
What is positive?
The vertical columns of the periodic table are called
What is groups?
These elements are nonconductors
What are non-metals?
Electrons found in the outermost energy level.
What are valence electrons?
Atoms in the same group have the same number of...
What is valence electrons?
For an atom to be neutral, this must occur.
What is the # p+ = #e-?
This element gains 2 electrons in a reaction and can cause iron to rust.
What is Oxygen?
The element with the following Bohr numbers: 2, 8, 8, 17
What is Bromine?
The Bohr model is one way to represent the number of electrons. These "diagrams" will be used in Science 10 to represent electrons in outermost shell.
What is the Lewis Dot Diagram?
Atoms in the same period have the same number of...
What are energy shells?
If an atom has 24 protons and 27 electrons, it is considered a(n) _________ and has a charge of _____
What is an ion (anion) and -3 charge?
Any member of a group of gaseous elements on periodic table that are inert are called
What is Noble gases?
Regions around the nucleus of an atom where electrons may be found are called
What are energy levels, shells, or orbits?