Science Question Preview (ID: 21485)
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Use a periodic table to answer: what is the atomic mass of hydrogen
a) 7
b) 1
c) 3
d) 21
How do you find the amount of protons in an atom?
a) The atomic mass
b) The atomic mass +19
c) The atomic number
d) All of the above
What is the atomic symbol of potassium
a) K
b) Po
c) Kg
d) M
How many natural elements are in the periodic table
a) 21
b) 89
c) 118
d) 96
How do you find the amount of neutrons in an atom
a) Atomic mass + the atomic number
b) Atomic mass - atomic number
c) The atomic mass
d) The atomic number
What is the atomic mass?
a) The amount of things in the nucleus
b) The amount of things in the outermost shell
c) The amount of things in the whole atom
d) All of the above
How many hydrogen atoms are in a water molecule
a) 3
b) 2
c) 9
d) None of the above
What is the atomic mass of oxygen
a) 15
b) 17
c) 16
d) 19
Why are some symbols different than they name
a) Scientists didn't want to make it their name
b) It's from the Latin origin
c) None of the above
d) Both a and b
What element has 104 protons in its nucleus
a) Rutherfordium
b) Gold
c) Hassium
d) Krypton
How many elements are metals in the periodic table
a) 28
b) 49
c) 21
d) 36
What is the correct way to write a element symbol
a) Au
b) AU
c) au
d) aU
Witch of the following has an atomic mass of 4.003
a) Boron
b) Helium
c) Oxygen
d) Beryllium
What statement is correct
a) Isotope is where the atom has no neutrons
b) An ion is where the amount of electrons change from its regular form
c) Its impossible for a neutron to have a charge
d) A proton's charge is neutral
What statement is NOT correct
a) The amount of protons is equal to the amount of electrons in an oxygen atom
b) You can't round the atomic mass to subtract the atomic number to find the amount of protons
c) None of the above
d) All of the above
What is the correct way to write a compound
a) H2O2
b) h2O2
c) H2o2
d) 22ho
Mercury is a liquid metal
a) False
b) True
c)
d)
What element has 6 protons 6 neutrons and 6 electrons
a) Silicon
b) Nitrogen
c) Oxygen
d) Carbon
Why do some elements have a decimal and some do not?
a) Because scientists found that protons have excess particles
b) Neutrons have a small charge
c) Electrons have excess particles
d) None of the above
What is the exact atomic mass of gold
a) 50.95
b) 197.0928
c) 197.009
d) 197.0
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