1
2
3
4
5
100
What is produced by plants after photosynthesis?
Glucose and oxygen
100
Which country will you find the twin tower?
Malaysia
100
- An atom has a proton number of 5 and an atomic mass number of 11. How many neutrons does it have?
6
100
- If an element had six valence electrons would it be a metal or non-metal?
non-metal
100
Write the word equation of photosynthesis
Carbon dioxide + water -----> glucose + oxygen
200
What is seen in the middle of March and April that can’t be seen at the beginning or end of either month?
letter r
200
According to ISO, Mongolia is divided into how many provinces?
Clue: between 20 to 30
21
200
What gas is taken from the atmosphere during photosynthesis?
Carbon dioxide
200
What is the capital city of Afghanistan
Kabul
200
I have cities but no houses, I have mountains but no trees, I have water but no fish. What am I?
Map
300
Try to recall the Periodic table of elements. There are 6 elements in group 1. What is the most reactive element in Group 1 of the Periodic table?
Francium or Fr
300
What are the three sub-particles of an atom and their charges?
Proton - positive charge
electron - negative charge
neutron - no charge
300
What are inside the nucleus of an atom?
proton and neutron
300
What are the four things needed by the plants to make food?
carbon dioxide, sunlight, chlorophyll, water
300
Draw the electron structure or configuration of Calcium with a proton number of 20. Write its electron configuration or structure.
2,8,8,2
400
What is a nucleon number?
the number of protons + the number of neutrons in the nucleus of an atom.
400
In what year that the independence of Mongolia from the Qing dynasty being proclaimed?
Clue: between 1900 to 1915
1911
400
I come once a minute, twice in a moment, but never in thousand years. What am l?
letter m
400
What are the factors that affect the rate of photosynthesis?
light intensity
carbon dioxide concentration
temperature
400
Magnesium has 24 atomic mass and 12 atomic number, How many proton, neutron electron does the magnesium have, write it's electron structure
proton - 12
neutron - 12
electron - 12
2,8,2
500
Who is one of the scientists who discovered protons in 1911?
Ernest Rutherford
500
State the other name given to:
group 1 ...............
group 7 .................
group 8 .................
group 1 - alkali metal
group 7 - halogen
group 8 - noble gases
500
What is the physical state of the group 7 elements at room temperature?
F .......... Cl ..................
Br ............ I ..................
As .............
F - gas, Cl - gas, Br - liquid
I - solid, As - solid
500
Why group 8 elements are all unreactive?
they have a complete outer shell or outermost shell
or because their outer shell is already stable or full
500
Who is the chemist who arranged the periodic table of elements according to their atomic mass?
Dmitri Mendeleev