What needs to happen for an Ion to form?
Mass Number=
What is Protons + Neutrons?
The atom is made up of 3 subatomic particles called
What are protons, neutrons, and electrons?
Isotopes are atoms of the same element that have different
a. numbers of protons. b. number of neutrons. c. numbers of electrons.
What is B. different number of neutrons?
Balance the following equation: _____H2 + ____O2 ---> ____H2O
2 H2 + 1O2 ---> 2H2O
How many electrons can fit in the 1st, 2nd, 3rd shells?
2,8,8
The two most reactive elements
Francium and Fluorine
Bond involving the sharing of electrons
What is a Covalent Bond?
This equation below is this type of reaction chemical reaction:
H2O2 ----> H2(g) + O2.
Decomposition
An Ion is negative when it has more _____ than _____.
Electrons than protons
A changing proton number results in
What is a new element?
Which element has 3 protons 3 electrons and 4 neutrons?
Lithium.
Chlorine has atomic number 17 and mass number 35. How many protons, neutrons, and electrons does it have?
What is 17 protons, 17 electrons, 18 neutrons?
Balance the following Equation: _____KClO3 ---> KCl + ______O2
2KClO3 ---> 2KCl + 3O2
How many total electrons would Oxygen have?
8
trend (or trends) that decrease down a group and increase across a period
What is Reactivity
Bond involving the giving and taking of electrons
What is an Ionic Bond?
The equation shown below is an example of this type of reaction:
CaSO4 + 2K ---> K2SO4 + Ca
single replacement reaction
What is the charge of an atom with 24 protons, 24 neutrons, and 26 electrons?
What is -2?
What on the periodic table equals the number of protons in an atom's nucleus?
What is Atomic Number?
Most of the mass of an atom is located
What is inside of the nucleus?
Why can't you change the protons to make an isotope?
Because it will change the element.
Balance the following equation: ____C3H8 + _____O2 ---> ____CO2 + ____H2O
1C3H8 + 5O2 ---> 3CO2 + 4H2O
How many valance electrons would Chlorine have?
7
Does Atomic Radius increase or decrease as you move down the periodic table?
Increase
The most stable group in the periodic table
The Noble Gases
The equation shown below is this type of chemical reaction:
H2 + O ---> H2O
Synthesis
Negative ions ______ electrons while positive ______ electrons.
positive ions LOSE, while negative ions GAIN
In the isotope notation Silicon-28, the number 28 represents the
What is the atomic mass number?
The space between the nucleus and the outer boundary of an atom is filled with mostly
What is empty space?
The listed relative atomic mass on the periodic table is closest to
What is the mass number of that element's most abundant isotope?
Balance the following equation: ____P + _____O2 --->_____P2O5
4P + 5O2 ---> 2P2O5

Which two elements are we looking at?
Lithium, Fluorine
Why is Florine so reactive in Ionic Bonding?
It has 7 valance electrons, and only 2 shells
What is an electron on the outer most shell called?
Valance Electron
The equation shown below is this type of chemical reaction:
CH4 + 2O2 ---> CO2 + 2H2O
Combustion
Why can you never change the amount of protons in an ion?
It will change the element
What are the mass of the three subatomic particles?
What is 1 amu for protons and neutrons and 0 amu for electrons?
The region outside the nucleus where an electron can most probably be found is the
What is electron cloud?
What is the difference between carbon-12 and carbon-14?
Carbon 14 has 2 more neutrons?
Balance the following equation: ___NaBr + ____CaF2 ---> ____NaF + ____CaBr2
2NaBr + 1CaF2 ---> 2NaF + 1CaBr2
What would a born model and a lewis dot model of Silicon look like?
What element has an electron configuration of 2.8.5
Phosphorus
What is the distance from the valence electron to the nucleus called?
Atomic Radius
The equation show below is an example of this type of chemical reaction:
ZnI2 + AlBr3 ---> ZnBr2 + AlI3
Double Replacement