Abundance Of Elements: Question Preview (ID: 32725)


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What does CHNOPS refer to?
a) the most abundant elements found in living matter
b) the most abundant elements found in the earth's crust
c) the most abundant elements found in ocean water
d) the most abundant elements found in the atmosphere

What two elements make up most of the mass of the human body?
a) sulphur and potassium
b) hydrogen and oxygen
c) nitrogen and carbon
d) hydrogen and carbon

Which of the following IS an element?
a) water
b) H2O
c) oxygen
d) salt

Which of the following is NOT an element?
a) Sodium Chloride
b) Na
c) Cl
d) sodium

Which of the following is NOT an element?
a) dirt
b) oxygen
c) hydrogen
d) Rubidium

What is the chemical symbol for magnesium?
a) Mg
b) mg
c) MG
d) Mag.

What is the chemical symbol for neon?
a) ne
b) Ne
c) N
d) n

N is the chemical symbol for ---
a) nitrogen
b) nickel
c) sodium
d) neon

The chemical symbol for chlorine is --
a) cl
b) Cl
c) Chl
d) CL

The chemical symbol for silicon is--
a) S
b) Na
c) Si
d) Se

What is the chemical symbol for helium?
a) Hi
b) He
c) HE
d) H

H is the chemical symbol for--
a) hydrogen
b) helium
c) holmium
d) mercury

The chemical symbol for Carbon is--
a) Ca
b) CA
c) C
d) Car

What is the chemical symbol for boron?
a) BO
b) Bo
c) B
d) Bn

Ca is the chemical symbol for--
a) chlorine
b) calcium
c) cacoline
d) carbon

What is the chemical symbol for sodium?
a) So
b) NA
c) S
d) Na

Pure substances with only one type of atom are known as--
a) compounds
b) atmosphere
c) elements
d) mixtures

CHNOPS refers to which elements listed below?
a) Carbon, helium, neon, osmium, phosphorus, sulfur
b) Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur
c) Chlorine, Helium, Sodium, phosphorus, silicon
d) chromium, hafrim, neon, oxygen, platinum, silicon

Ocean water is made up mostly of--
a) hydrogen and oxygen
b) salt and chlorine
c) sodium and chloride
d) helium and oxygen

There is a limited number of elements found throughout the earth, water, atmosphere, and living things.
a) True
b) false
c)
d)

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