Quarterly 2 Review

What element is most likely to gain electrons in a chemical reaction

• Na

• Sr

• O

• S

Which element has chemical properties most similar to Oxygen

• S and F

• F and N

• S and Te

• Te and N

Noble gases have the ________ radius in their periods

Neutrons and ___________ are found inside the nucleus of an atom

What fraction remains of an original 20 gram sample of potassium-42 after 49.44 years

• 1/8

• 1/4

• 1/16

• 1/32

THe combination of small nuclei to form a larger nuclei is called

• addition

• fusion

• fission

• replacement

Identify the missing product in the following reaction

Au-198 -----> Hg-198 + X

• Beta

• Gamma

• Positron

• Alpha

Who discovered the atom can be divisible

• Rutherford

• Dalton

• Bohr

• Thomson

How many neutrons are in Carbon-14

• 8

• 6

• 14

• 0

What particles have approximately one amu

• electron and proton

• electron and positron

• proton and positron

• proton and neutron