Atomic Theory
Which scientist of atomic theory described the atom as a solid sphere with no internal structure?
Who is John Dalton
A sample of Sugar would be considered or classified as what type of matter?
What is a compound?
What would the chemical formula be for ions
Ca2+ and O2-
What is CaO
What is the correct order for number of electrons each orbital can hold?
__ = s
__ = p
__ = d
__ = f
What is: 2,6,10,14
What type of reaction is the following example?
4Fe + 3O2 → 2Fe2O3
What is synthesis
N2O5 is considered a molecular or ionic compound?
What is molecular
P vs C ?
What kind of change is Gold being melted over time
Physical change
Which scientist of atomic theory described the atom as mostly empty space with a small nucleus?
Who is Ernest Rutherford
A sample of Iced Tea would be considered or classified as what type of matter?
What is a homogeneous mixture
What would be the chemical formula for ions
Al3+ and S-2
What is Al2S3
Which rule for writing electron configurations states if two electrons occupy the same orbital, they must have opposite spins?
Pauli Exchange Principle
What type of reaction is the following example?
C12H22O11 → 12 C + 11 H2O
What is decomposition
H3PO4 is considered a molecular or ionic compound?
What is molecular
P vs C ?
What kind of change is An Iron nail rusting as it exposed to air
Chemical change
Which scientist of atomic theory described the atom as electrons embedded in a sphere of positive charge?
A sample of Silver would be considered or classified as what type of matter?
What is an element
What would be the chemical formula for ions
Ba2+ and PO43-
What is Ba3(PO4)2
Which rule for writing electron configurations states electrons occupy the orbitals of lowest energy first?
Aufbau Principle
What type of reaction is the following example?
BaCl2 + 2 KIO3 → Ba(IO3)2 + 2 KCl
What is Double Displacement
What is the name of compound: N2O5?
What is Di-nitrogen pentoxide
P vs C?
What kind of change is Burning liquid butane when using a lighter
Chemical change
Which of the following would best describe a anion
55 protons, 54 electrons
19 protons, 18 electrons
82 protons, 82 electrons
8 protons, 10 electrons
What is: 8 protons, 10 electrons
A sample of Pasta Salad would be considered or classified as what type of matter?
What is a heterogeneous mixture
S2- has how many protons and electrons?
16 protons
18 electrons
Which rule for writing electron configurations states electrons will fill each orbital of a sublevel one by one first, and then will double up once each orbit contains one electron?
Hund’s Rule
What type of reaction is the following example?
Mg + 2 HNO3 → Mg(NO3)2 + H2
What is Single Displacement
What is the name of compound: H3PO4?
What is Tri-Hydrogen phosphate
P vs C?
What kind of change is Water evaporating as it is boiled
Physical change
Which of the following describes a Selenium (Se) ion having 34 protons, 45 neutrons, and 36 electrons
Atomic mass: 79 Charge: -2
Atomic mass: 34 Charge: +2
Atomic mass: 34 Charge: -2
4. Atomic mass: 79 Charge: +2
What is #1, Atomic mass: 79 Charge: -2
What type of elements can make up a molecular compound?
What is a non-metal and a non-metal
Rb1+ has how many protons and electrons?
37 protons
36 electrons
Where are the valence electrons located in the electron configuration in the element Phosphorus?
1s2 2s2 2p6 3s2 3p3
What is electrons in 3s2 3p3
Total of 5 valence electrons
What is the type of reaction in which two compounds react to form two different compounds?
What is Double Displacement
What information is needed in order to calculate the molar mass of a compound?
What is the count of each element and each element's mass
Which of the following statements is true about elements in the same group?
They have similar ionization energies
They have similar atomic radii
They have the same electronegativity
They have the same number of valence electrons
They have the same number of valence electrons