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Which is the only atom that hydrogen cannot bond with via hydrogen bonding?
one of two or more existing forms of an element. Diamond
Atoms of the same element with same number of protons and different number of neutrons.
Chlorine
Presence of mobile electrons, Closely packed atoms
The higher the principal quantum number, lower the ionisation energy
Hund's rule
162
Chemical reactivity and properties
What is the total number of electrons an atom with principal quantum shell 9 can occupy?
one of two or more existing forms of an element. Diamond
Atoms of the same element with same number of protons and different number of neutrons.
Chlorine
Presence of mobile electrons, Closely packed atoms
The higher the principal quantum number, lower the ionisation energy
Hund's rule
162
Chemical reactivity and properties
What is an allotrope? What is an example of an allotrope of carbon?
one of two or more existing forms of an element. Diamond
Atoms of the same element with same number of protons and different number of neutrons.
Chlorine
Presence of mobile electrons, Closely packed atoms
The higher the principal quantum number, lower the ionisation energy
Hund's rule
162
Chemical reactivity and properties
HWhat is the relationship between the principal quantum number and ionisation energy?
one of two or more existing forms of an element. Diamond
Atoms of the same element with same number of protons and different number of neutrons.
Chlorine
Presence of mobile electrons, Closely packed atoms
The higher the principal quantum number, lower the ionisation energy
Hund's rule
162
Chemical reactivity and properties
When electrons are added successively to a set of orbitals of the same energy, they occupy them singly first before any pairing occurs. What is this rule/principal named?
one of two or more existing forms of an element. Diamond
Atoms of the same element with same number of protons and different number of neutrons.
Chlorine
Presence of mobile electrons, Closely packed atoms
The higher the principal quantum number, lower the ionisation energy
Hund's rule
162
Chemical reactivity and properties
What is the definition of isotopes?
one of two or more existing forms of an element. Diamond
Atoms of the same element with same number of protons and different number of neutrons.
Chlorine
Presence of mobile electrons, Closely packed atoms
The higher the principal quantum number, lower the ionisation energy
Hund's rule
162
Chemical reactivity and properties
Why are metals a good electrical and heat conductor respectively?
one of two or more existing forms of an element. Diamond
Atoms of the same element with same number of protons and different number of neutrons.
Chlorine
Presence of mobile electrons, Closely packed atoms
The higher the principal quantum number, lower the ionisation energy
Hund's rule
162
Chemical reactivity and properties
What does the number of valence electrons determine?
one of two or more existing forms of an element. Diamond
Atoms of the same element with same number of protons and different number of neutrons.
Chlorine
Presence of mobile electrons, Closely packed atoms
The higher the principal quantum number, lower the ionisation energy
Hund's rule
162
Chemical reactivity and properties
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