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Atomic Concepts
Periodic Table
Nuclear chemistry
Chemical Bonding
Physical Behavior of Matter
100

protons and neutrons mass

what is 1 amu?

100
Which Group 14 element is classified as a metal
What is lead, Pb
100

decay of a nucleus into another element to become stable

What is transmutation

100

Type of bonding in HCl

what is covalent or molecular?

100

an aqueous mixture 

what is homogenous? 

200

How many total electrons in an ion of magnesium? 

what is 10 total electrons?

200
as atomic radius increases, reactivity...

What is decreases

200

The combining of two small nuclei into one larger one, usually producing a lot of energy (such as on the surface of the sun)

what is fusion?

200

What is the total number of electron pairs shared between the carbon atom and one of the oxygen atoms in a carbon dioxide molecule?

What is 2

200

Temp that water melts

what is 0 degrees 

300
An atom in an excited state has an electron configuration of 2-7-2. Write the electron configuration of this atom in the ground state.
What is 2-8-1
300

attraction for electrons in a chemical bond

What is electronegativity

300

used to date once living things 

What is carbon-14

300

sample conducts electricity as a solid 

what is metallic bonding?

300

Compare the amount of heat required to vaporize a 200.-gram sample of H2O(ℓ) at its boiling point to the amount of heat required to melt a 200.-gram sample of H2O(s) at its melting point.

The heat of vaporization is higher, so it takes more heat to vaporize than it does to melt.

400

The gold foil experiment led to the conclusion that atoms are composed mostly of empty space because....

what is particles moved through the foil?

400
Diatomic element that is liquid at STP

what is bromine?

400

What fraction of a Sr-90 sample remains unchanged after 87.3 years?

1/8

400

Name of a diatomic element in group 17.

what is fluoride, chloride, iodide, bromide ?

400

the arrangement of particles has a definite shape and volume 

what is a solid?

500
The light emitted from a flame is produced when electrons in an excited state
What is fall back to the ground state and release energy
500

atomic radius increases down a group and decreases across a period because...

what is adding more shells down a group and increasing nuclear charge across a period 

500

what is the half life if an initial sample of 400g decays to 12.5g in 300 years?

what is 60 years 

500

determined by the distribution of charge  

what is molecular polarity?

500

a 20g sample of copper at 30 degrees was placed in a cup of water. The final temperature of both the copper and the metal was 12 degrees, releasing 150J of heat. Calculate the specific heat of a metal.

0.42