Science Nine Chapter Two Question Preview (ID: 4184)
Science 9 Chapter 2.
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The symbol for Chlorine is:
a) C
b) Ch
c) Cl
d) Ce
Which of the following correctly matches the name of the element with the chemical symbol?
a) magnesium = Mg
b) aluminium = A
c) oxygen = Ox
d) nitrogen = Ni
Which of the following is a gas at room temperature?
a) calcium
b) carbon
c) chlorine
d) copper
Which of the following metals is liquid at room temperature?
a) silver
b) sodium
c) mercury
d) manganese
What is the horizontal row in the periodic table?
a) column
b) family
c) period
d) group
Which of the following is ALWAYS the same as the atomic number of an element?
a) number of protons
b) number of neutrons
c) number of electrons
d) number of ionic charges
Sodium belongs to which periodic table family?
a) noble gases
b) alkali metals
c) alkaline earth metals
d) halogens
How many electrons can the first electron shell hold?
a) 4
b) 8
c) 18
d) 2
Which of the following is a noble gas?
a) Chlorine
b) Francium
c) Xenon
d) Carbon
To find out the average atomic mass, you would:
a) find the number of electrons in an atom and add that to the number of protons in the atom
b) find the number of electrons in an atom and add that to the number of neutrons in the atom
c) find the atomic number and add that to the number of electrons in the atom
d) find the atomic number and add taht to the number of protons in the atom
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