Periodic Table
The name of the horizontal row in the periodic table
What is period?
The formula of calcium nitrite
What is Ca(NO2)2?
Covalent bonds have ________ melting/boiling points.
The number of protons, neutrons, and electrons in sodium (Na)
What is a P= 11, N= 12, E= 11
This type of change often involves color change, gas production, or formation of a precipitate.
What is Chemical Change?
The reactivity _________ as you go down the periodic table.
What is increase(s)?
chemical name of CaF2
What is Calcium Flouride?
What makes ionic bonds good conductors?
Number of neutrons in phosphorus
What is16?
Which Scientist Discovered the Nucleus?
Who is Rutherford? (Gold Foil Experiment)
The name of the group 2 is__________ metals.
What is the Alkaline Earth metals?
Name this compound HgI2
What is Mercury (II) Iodide?
Ionic bonds are ______ (stronger/weaker) than covalent bonds. State the reason.
what is stronger; donating/accepting electrons forming lattice structure?
______ and ______ make up the neucleus of an atom
What is protons and neutrons
Dissolving sugar in water is usually classified as this type of change.
What is physical Change
The atomic number is always the same as ___________.
What is the number of protons?
Name of this compound: Mg3(PO4)2
What is magnesium phosphate?
Ionic compounds are electrically ___________ (i.e. what is the charge)
What is neutral
Draw bohr diagrams of F atom AND ion!
9 P, 10 N,
atom=1st shell has 2 electrons, valence shell has 7 electrons, no charge
ion= 1st shell has 2 electrons, valence shell has 8 electrons (full), (-) charge
This happens to atomic size as you move left to right across a period
What is Decreases
When an atom gains electrons, the charge becomes _________, and the ion is called __________.
What is negative and anion?
What is the name of this formula: CO
What is carbon monoxide?
three properties of covalent compounds
What is 1) low melting/boiling points 2) relatively soft, and 3) poor conductivity
________ stays the same within each period (of the periodic table)
What is number of electron shells?
Which element is more reactive: sodium (Na) or potassium (K)?
What is Potassium