Periodic Table
Each horizontal row of the Periodic Table
What is a period?
The positive part of the atom
What is the nucleus?
True or False:
Elements are composed of 2 or more substances.
In a covalent bond, atoms ___ electrons.
What is share?
A charged particle is called a(n) ___.
What is an ion?
Each vertical column on the Periodic Table
What is a Group?
The number of neutrons in an atom is calculated by
What is Atomic mass - Atomic number?
True or False:
Compounds are chemically combined, but they can be physically separated.
False, compounds cannot be physically separated.
In an ionic bond, electrons are ___ between atoms.
What is transferred?
True or False:
Isotopes have the same number of protons.
True.
The group number of He and Ne
What is Group 18 (Noble Gases)?
This subatomic particle has no mass
What is electron?
The kind of change that occurs when water evaporates into the air
What is a physical change?
Beryllium would like to donate this amount of valence electrons
What is 2 valence electrons?
Carbon-12 and Carbon-14 have a different number of ___.
What is neutrons?
The group that nickel, copper, and gold are apart in
What are the transition metals?
The number of electrons that fit in the first three energy levels
What is 2, 8, 8+10
What is a solution?
Ionic bond or covalent bond: when carbon shares its valence electrons with 4 hydrogen atoms
What is covalent bond?
Ion, Isotope, or Neutral Atom:
Chlorine has 17 protons, 17 neutrons, and 17 electrons.
What is an isotope?
What is the name of Group 17? How many valence electrons does each of its elements have?
What is Halogens and 7 valence electrons?
What makes radioactive isotopes unstable? (Why do the nuclei of these atoms break down?)
There is not a stable amount of neutrons to hold the nucleus together (there are too few or too many neutrons).
Water is considered the "Univeral ___"
What is solvent?
What is electromagnetic force?
An oxygen atom with a charge of -2 has this many electrons
What is 10 electrons?