WorksheetsBiology 2.1 - The Nature of Matter (1)
Total questions: 15
Worksheet time: 9mins
The positively charged particle in an atom is the
neutron.
ion.
proton.
electron.
Two or more different atoms are combined is known as what?
symbol.
isotope.
element.
compound.
Which of the following is NOT an organic molecule found in living organisms?
protein.
nucleic acid (DNA and RNA).
sugar (carbohydrate).
salt.
fat (lipid).
In which of the following ways do isotopes of the same element DIFFER?
in number of neutrons
in number of protons
in number of electrons
atomic number
atomic mass (atomic weight)
Which has the greater electronegativity (EN)?
C, N, or O?
C
N
O
Which has the greater electronegativity (EN)?
H, C, N, O, or F?
H
F
C
N
O
Electronegativity is...
how good an atom is at attracting electrons
the ability of an atom to lose electrons
the energy required to remove an electron from a specific atom
how easy it is to make friends.
The element has the highest electronegativity (EN) of all the elements listed on the periodic table?
At
F
Cl
Br
In this Lewis structure, the symbol δ- above F means what?
electrons are being transferred to Fluorine
electrons are less attracted to F than H
electrons are more attracted to F than H
Fluorine has formed a cation
Hydrogen has an electronegativity of 2.20, fluorine an electronegativity of 3.98. What sort of bond do they form?
ionic
polar covalent
nonpolar covalent
A diatomic molecule like O2 is always_______ because electrons are shared ________.
nonpolar; equally
polar; equally
nonpolar; unequally
nonpolar; unequally
A covalent bond is formed between what type of elements?
metal and metal
nonmetal and nonmetal
metal and nonmetal
In which of the following ways do isotopes of the same element SIMILAR?
in number of neutrons
in number of protons
in number of electrons
atomic number
atomic mass (atomic weight)
