stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Atoms and Periodic Table End of Year Review 1 Flashcards | StudBud
Explore
/
Atoms and Periodic Table End of Year Review 1
Atoms and Periodic Table End of Year Review 1
21 terms
·
StudBud Administration
·
448 plays
Periodic Table and Atoms Review for end of year GMAS #physicalscience
Flashcards
21 cards
F
Practice quiz
P
Host live
L
Questions
21
Answers
1
which scientists inferred that an atoms positive charge must be clustered in the nucleus
Niels Bohr
J.J Thomson
Ernest Rutherford
John Dalton
2
in general, which of the following statements about metals is true?
metals show a wide range of chemical properties
metals need to be stored in sealed containers for safety
metals are highly reactive substances
metals do not react with oxygen
3
what term means that metals can be rolled into thin sheets or beaten into complex shapes
malleable
alloy
ductile
polar
4
an ionic bond is the attraction between
oppositely charged ions
neutral atom
netrual ion
similarly charged ions
5
ions that are made of more than one atom are examples of
polyatomic ions
positive ions
negative ions
neutral ions
6
brass and steel are examples of
elements
alloys
valence electrons
pure metals
7
what event provides enough energy for the nuclear fusion reaction creates the heaviest elements
particle accelerator
nebula
supernova
plasma
8
what is the greatest number of valence electrons an atom can have
12
8
2
3
9
electrons involved in bonding between atoms are
inside the nucleus
valence electrons
positively charged
closest to the nucleus
10
why would it be difficult to determine the chemical and physical properties of new elements
elements nuclei would break apart very quickly
elements would not fit in the periodic table
elements would lack many properties of ordinary elements
elements would combine the properties of the nuclei
11
which of the following terms that metals can be pulled into thin strands or wires
ductile
malleable
polar
alloy
12
how did chemist change Mendeleev's periodic table in the early 1900s
used atomic # instead of atomic mass to organize the element
included physical properties like melting point and density
used mass instead of atomic number to organize element
included chemical properties such as bonding power
13
if atoms of a halogen nonmetal (group 17) gain one electron, the atoms then have
7 valence electrons
17 valence electrons
8 valence electrons
no valence electrons
14
to make most synthetic elements, scientists use powerful machines called
nebula
semiconductors
supernovae
particle accelerators
15
Magnesium bromide (MgHBR
2
) is an ionic compound. What does the "2" tell you?
there are two bromide ions for every magnesium ion
bromide has a 2 + charge
Bromide has a 2- charge
there are two magnesium ions to every bromide ion
16
each family in the periodic table has its own characteristic properties based on the number of
neutrons
ions
protons
valence electrons
17
in the periodic table, the most reactive metals are found
group 13 through 16 in the center
in group 1, first column on the left
in period 1, first row on the top
periods 6 and 7 at the bottom
18
most metals are NOT
good conductors
liquid at room temperature
ductile
malleable
19
a chemical bond formed when two atoms share electrons is called
covalent bond
polyatomic bond
crystal bond
ionic bond
20
When an atom loses an electron is becomes a
neutral ion
negative ion
a positive ion
neutral atom
21
mendeleev created the first periodic table by arranging elements in order of
increasing melting points and densities
increasing atomic number
decreasing atomic mass
increasing atomic mass
