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How is the atomic mass of an element determined?
Average atomic mass of all its isotopes
most reactive nonmetals
tin, copper, cesium
They form negative ions with a -1 charge
gases
more valence electrons
They are similar to noble gases
increases
As you move from left to right across a period, the number of valence electrons
Average atomic mass of all its isotopes
most reactive nonmetals
tin, copper, cesium
They form negative ions with a -1 charge
gases
more valence electrons
They are similar to noble gases
increases
Which list of elements contains only metals
Average atomic mass of all its isotopes
most reactive nonmetals
tin, copper, cesium
They form negative ions with a -1 charge
gases
more valence electrons
They are similar to noble gases
increases
Group 17 (7A) of the periodic table contains the
Average atomic mass of all its isotopes
most reactive nonmetals
tin, copper, cesium
They form negative ions with a -1 charge
gases
more valence electrons
They are similar to noble gases
increases
Compared with Group 1 elements, Group 17 elements have
Average atomic mass of all its isotopes
most reactive nonmetals
tin, copper, cesium
They form negative ions with a -1 charge
gases
more valence electrons
They are similar to noble gases
increases
At room temperature, none of the metals are
Average atomic mass of all its isotopes
most reactive nonmetals
tin, copper, cesium
They form negative ions with a -1 charge
gases
more valence electrons
They are similar to noble gases
increases
Which statement is NOT true about the elements fluorine, chlorine and iodine?
Average atomic mass of all its isotopes
most reactive nonmetals
tin, copper, cesium
They form negative ions with a -1 charge
gases
more valence electrons
They are similar to noble gases
increases
Which statement about the alkali metals is correct?
Average atomic mass of all its isotopes
most reactive nonmetals
tin, copper, cesium
They form negative ions with a -1 charge
gases
more valence electrons
They are similar to noble gases
increases
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