Ch 8, 8th Grade Question Preview (ID: 37331)


Atoms And Bonding. TEACHERS: click here for quick copy question ID numbers.

Which information would you NOT find on the periodic table?
a) melting point
b) state at room temperature
c) atomic mass
d) chemical symbol

The horizontal rows on the periodic table are called
a) periods
b) groups
c) columns
d) families

An element that is shiny, conducts electricity well, and can be hammered into thin sheets is a
a) metal
b) metalloid
c) semi-metal
d) nonmetal

How many electrons can the first energy level of an atom hold?
a) 2
b) 4
c) 6
d) 8

The elements in Group 18 are stable, unreactive elements called
a) royalty gases
b) no nonsense gases
c) noble gases
d) snobby gases

Covalent compounds have which of the following characteristics?
a) low melting and boiling points
b) usually gases or liquids at room temperature
c) poor conductors
d) all of the above

A polar compound can be dissolved by
a) another polar compound
b) a nonpolar compound
c)
d)

Which type of bond occurs between a metal and a nonmetal?
a) covalent
b) polar
c) ionic
d) metallic

A neutral atom gains two electrons and becomes an ion. What is its charge?
a) 2+
b) 2-
c) 0
d) 1-

In a metallic compound, electrons are found in
a) energy levels
b) electron clouds
c) pools
d) jacuzzis

Metallic compounds are
a) terrible conductors of electricity
b) usually liquids at room temperature
c) shiny
d) all of the above

Nitrogen is in Group 15 of the periodic table. How many valence electrons does it have?
a) 1
b) 5
c) 6
d) 8

the outermost electrons of an atom that participate in chemical bonding
a) ions
b) isotopes
c) polar electrons
d) valence electrons

atoms that are no longer electrically neutral because they've gained or lost electrons
a) isotopes
b) ions
c) valences
d) molecules

group of chemical symbols and numbers that represent elements and numbers of atoms of each element that make up a compound
a) chemical bond
b) chemical formula
c) covalent bond
d) ionic bond

forms when two atoms share one or more pairs of valence electrons
a) covalent bond
b) ionic bond
c) metallic bond
d) isotope bond

Most of the matter around you is found as
a) pure elements
b) native elements
c) compounds
d) gases

Electrons that are farther away from the nucleus have ___ than ones closer to the nucleus
a) more energy
b) less energy
c) stronger charges
d) weaker charges

Nonmetals are more likely to ___ electrons
a) lose
b) gain
c)
d)

In the molecule H2O, how many hydrogen molecules are in it?
a) 1
b) 2
c) 3
d) 4

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