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WorksheetsGrade 12 - Beryll Episode 1-3 Quiz
Total questions: 20
Worksheet time: 10mins
What happened during the Big Bang?
An explosion of the universe.
An expansion of the universe.
An exclusive universe
An emergence of the universe.
What do you call the formation of the elements?
Nucleotides
Synthogenesis
Nuclear Fusion
Nucleosynthesis
How many types of nucleosynthesis are there?
1
2
3
4
What are the first elements formed in the universe?
Hydrogen and Helium
Gold and Copper
Silver and Helium
Hydrogen and Gold
The first elements were formed in what is known as _____________.
BIG BANG NUCLEOSYNTHESIS
STELLAR NUCLEOSYNTHESIS
SUPERNOVA NUCLEOSYNTHESIS
STELLAR NUCLEOSYNTHESIS
______________ Nucleosynthesis happens in the center of the stars and is where the elements carbon through iron (Fe) are formed.
BIG BANG
SUPERNOVA
STELLAR
RED GIANT
Stellar Nucleosynthesis stops at the element iron because there are __________ in their nuclei.
NOT ENOUGH PROTONS
NOT ENOUGH PROTRONS
NOT ENOUGH ELECTRONS
NOT ENOUGH NEUTRONS
All elements bigger than iron in the periodic table are formed in ________.
BIG BANG
STELLAR
SUPERNOVA
RED GIANT
Three helium nuclei fuse to form ___________.
CARBON
LITHIUM
HYDROGEN
PHOSPHORUS
How many light elements were created after Big Bang Nucleosynthesis?
1
2
3
4
Which of the following processes is likely to generate the heaviest element?
CNO PROCESS
R-PROCESS
TRIPLE ALPHA PROCESS
BIG BANG NUCLEOSYNTHESIS
If an element is used up by a star in fusion, it is sometimes called “burning” even though no actual combustion occurs. Which of the following processes is likely to involve “carbon burning”?
ALPHA LADDER
CNO CYCLE
TRIPLE ALPHA PROCESS
S-PROCESS
Where can you find the heavy elements in the star?
RED GIANT
PROTOSTAR
CORE
MAIN SEQUENCE STAR
Which of the following statements is true about stellar nucleosynthesis?
In the core of a main sequence star, hydrogen is fused into helium via the beta plus decay.
When the majority of the helium in the core has been converted to carbon, then the rate of fusion increases.
When the core temperature reaches about 10 million K, nuclear reactions begin wherein positrons and neutrons are released which increase pressure and stop the contraction.
Due to strong gravitational force, the protostar contracts and its temperature increases.
What do you call a nucleus that has 2 protons and 2 neutrons but has no electron? It is usually emitted during a radioactive decay.
Lithium
Hydrogen
Alpha Particle
Beta Particle
24 Mg
12
What does the number 24 in the isotope notation of Magnesium - 24 refer to?
Number of neutrons
Atomic Number
Mass Number
Number of Magnesium
How many protons are in this atom?
3
4
6
10
How many neutrons are in this isotope of Uranium?
235
327
92
143
These are chemical elements that do not occur naturally on Earth?
natural-occurring elements
nuclear elements
synthetic elements
thermonuclear elements
Who discovered the sub-atomic particle called, electrons?
JJ Thompson
James Chadwick
Ernest Rutherford
Mendeleev
