Atoms & Compounds
These are the two types of particles found inside the nucleus of an atom.
What are protons & neutrons?
This is the element represented by the chemical symbol 'N'.
What is Nitrogen?
The vertical columns of the periodic table are referred to as this.
What are groups?
This is the balanced version of the following chemical equation:
__P4+ __O2 → __P4O6.
What is P4+ 3O2 → P4O6?
Two or more substances that are mixed together in a solution, but are not chemically bonded to one another describes this term.
What is a mixture?
These are the particles that circles around the nucleus of an atom.
What are electrons (E-)?
The horizontal rows of the periodic table are referred to as this.
What are periods?
In total, there are this many groups on the periodic table.
What is 18?
This is the balanced version of the following chemical equation:
__Cu2O+ __C → __Cu + __CO2
What is 2Cu2O+ C → 4Cu + CO2?
The numeric symbol that appears small and lowered to the bottom of a chemical symbol is this.
What is a subscript?
This is a substance in which two or more different elements are chemically bonded together.
What is a compound?
This man is credited with the development of the Periodic Table.
Who is Dmitri Mendeleev?
These elements are semi conductors and exhibit half the characteristics and properties of both metals and non metals.
What are metalloids?
This is the balanced version of the following chemical equation:
__Na + __O2 → __Na2O
What is 4Na + O2 → 2Na2O ?
Also called a molecular bond, this bond type is a chemical bond that involves the sharing of electron pairs between 2 non-mental atoms.
What is a Covalent Bond?
This describes the complete transfer of valence electrons between atoms.
What is an ionic bond?
This periodic table family has the least reactive elements.
What are the noble gases?
This is the element represented by the chemical symbol 'Hg'.
What is Mercury?
This is the balanced version of the following chemical equation:
__Fe + __H2O → __Fe3O4 + __H2
What is 3Fe + 4H2O → Fe3O4 + 4H2 ?
The number below a chemical name on a 'tile' of the periodic table represents this information about that element.
What is atomic mass/weight?
This model describes the actual nucleus-shell structure an atom exhibits. (Hint: the answer is on a poster somewhere in the room)
What is the Bohr model?
This is the element represented by the chemical symbol 'Zr'.
What is Zirconium?
This is the element represented by the chemical symbol 'Sn'.
What is Tin?
This is the balanced version of the following chemical equation:
__C2H6 + __O2 → __CO2 + __H2O
What is 2C2H6 + 7O2 → 4CO2 + 6H2O?
The mass of a given chemical element or chemical compound, divided by the amount of that substance present, tells us this.
What is molar mass?