Most mass of the atom comes from which parts
Nucleus- protons and neutrons
The periods go which direction on the periodic table?
horizontal
Which country is 4.6 % of the world’s population, but is responsible for 15% world CO2 emissions by estimate?
US
A reaction type where two elements form a compound
Synthesis
In which type of bond do parent atoms lose their electrons, which are then shared among many atoms?
Metallic bond
How much of a Hydrogen atom is empty space?
The groups go which direction on the periodic table?
Vertically
Name two fossil fuel resources used for energy production.
Coal, Oil, natural gas (methane)
A reaction type where a compound can be broken into two or more elements
Decomposition
In which type of bond are pairs of electrons shared between two atoms
Covalent bond
Is the Bohr model the same as a lewis dot structure? what is different?
No. Lewis structures only contain the valance electrons
Describe where I find metals on the table
Mostly left of group 13
What design modifications can be made to modern jets to make them more efficient?
Aerodynamic improvements, more efficient fuel use, lighter materials, eco friendly materials
A reaction which gives off energy
Exothermic
What causes the strength of metallic bonds
The bank of shared electrons being attracted to their protons.
describe the Bohr model
A central nucleus with electrons in circular orbits at increasing energy levels.
Describe where the non metals are located
To the right of the metalloids
a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents.
quanta
How many Carbons in 2(C6H12O11)
12
What is it called when 2 pairs of electrons are shared between atoms
Double bond
Name 3 sub atomic particle types in the Standard model.
Quarks, Leptons, and Bosons
How many electrons do the noble gasses Ne and Ar have in their valence shell?
8
Quantum mechanics is based on the ___________________ a. Newton’s Laws b. Probability of where atomic particles have actually been observed. c. Schroedingers cat d. Einstien's special relativity
b.
Balance the reaction:
__N205------->__N2+__O2
2, 2, 5
In which type of bond is there a transfer of electrons
Ionic bond