Study CHEM CHAP. 6 vocab Flash Cards

 
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CHEM CHAP. 6 vocab

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Electronegativity can help predict the types of ______________-
bonds atoms have
electronegativity values:
___________ has higher electronegatiity than ____________-
nonmetals
metals
__________ are always smaller than the neutral atoms from which they form
smaller
nonmetaic elements tend to gain electrons and form _______________ ions
negative
metallic elemetns tend to loose electrons and form _______________ions
positive
ionization energy
energy required to overcome the attraction of protoins in the nucleus and remove elctron from gaseous atom
when are ions formed?
when electrons are transferred between atoms
what is an ion
atom that has -/+ charge
what are the two variables that affect atomic size within a group
1. the charge on the nucleus
2. number of occupied energy levels
the radius of an atom has to be measured
indirectly
i'm found in inner transition metals
nobelium
i'm found in transition elements
vanadium
i'm found in the representative elemtns
gallium
i'm found in noble gases
argon
inner transition metals
s sublevel and nearby F sublevel contain electrons
transition metals
s sublevel and D sublevel contain electrons
representative elemtns
S or P sublevels are PARTIALLY filled
noble gases
S or P sublevels are filled
how many electrons occupy the energy level in group 3A
3
____________________________ are particles that play the key role in determining the properties of an element
electrons
what else can you find from the periodic table, besides the regular stuff
1. whether an element is found in nature
2. electrons in each energy level
3. state @ room temp
under some conditions, i can behave like a metal or nonmetal
metaloid
which has greater variation....nonmetals or metals
nonmetals
what are the properties of metals:
good conductor of heat
high luster
solid
ductile
malleable
what arranged elements in the current periodic table?
atomic number
mendeleev used his periodic table to predict the properties of unddiscovered elemetns: t/f
true
what did dmitri mendeleev do?
organized based on atomic mass
what did chemists use to sort elements into groups?
properties of elements
what casued the rate of discovery to increase after 1700
SCIENTIFIC METHOD
how many elements were identified by the year 1700
13
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