The Atom
The three subatomic particles of an atom.
What is the proton, neutron and electron?
The modern periodic table is arranged by
What is increasing atomic number?
The 2 main groups of the periodic table
What are metals and nonmetals?
An atom or molecule that has an electric charge
What is an ion?
Identify the elements in the compound (NH4)(C2H3O2)
What is nitrogen, hydrogen, carbon, oxygen?
Protons have a mass that is ____ the mass of a neutron.
What is equal to?
The number of neutrons in an atom equals
What is the atomic mass minus the atomic number?
Tl
What is Thallium?
An atom has a stable electron arrangement if it has this many electrons in its valence shell
What is 8?
Chemical Formula for:
sulfur + potassium
What is K2S?
What are the nucleus and the electron cloud?
How many periods does the periodic table have
What is 7?
Atomic mass of 106
What is Palladium?
What is 7?
The oxidation number for Cu(III)
What is +3?
Electrons have a charge that is ___ the charge of a proton.
What is equal in size and opposite to?
Which elements are all gases at room temperature?
What are the Noble Gases or Group 8A?
Period 4; Group 6A
What is Selenium?
The type of bond when hydrogen and oxygen combine
What is covalent bond?
Name the compound:
Ca3N2
What is calcium nitride?
Isotopes of an element have the same number of ___ but different number of ___
What are the same protons but different neutrons?
The atomic number is equal to what in an atom
What are the numbers of protons and electrons?
What is 36 protons and 48 neutrons?
If an atom loses electrons it has a ___ charge
What is positive?
The number tells how many electrons were lost or gained to fill the valence shell
What is oxidation number?