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Unit 4 REVIEW
Unit 4 REVIEW
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Periodic table review for unit test
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
What type of element is Silicon (Si)?
metal
nonmetal
metalloid
2
How many neutrons are in an atom if atomic number is 4 and mass number is 15?
15
4
11
9
3
What is an isotope?
Atom of same element with different number of electrons
Atom of same element with different of protons
Atom of same element with different number of neutrons
4
What particle in the atom is light and negatively charged?
proton
electron
nucleus
neutron
5
Determine the number of orbitals of any element on the periodic table by looking at?
periods
metal, nonmetals, metalloids
valence electrons
groups
6
What is the mass number of an atom?
number of electrons and protons
number of electrons and neutrons
number of protons and neutrons
7
How many neutrons does bromine-81?
80
46
45
35
8
How many orbitals does Rubidium (Rb) have?
5
1
37
85
9
This element is most likely to a solid and very reactive
potassium (K)
oxygen (O)
chlorine (Cl)
silicon (Si)
10
Which of the following are NOT characteristics of metals?
mostly gases
good conductors of heat
ductile
malleable
11
What is the charge of the neutron?
no charge
neutral
positive
negative
12
Which of the following does the group # tell about an element?
electron shells/orbitals
atomic number
valence electrons
mass number
13
What is the charge of the electron?
no charge
positive
negative
neutral
14
What are valence electrons?
All the electrons inside the nucleus
Electrons in the highest/outermost shell (level)
Electrons closest to the nucleus
Electrons are negative particles outside the nucleus
15
What is the total charge of every atom?
neutral
zero
1
5
16
What does the background of periodic table square represent?
That it is an element
That it is a gas, liquid, or solid
It is a Halogen
Class/Type of element
17
What class of elements are poor conductors; brittle as solids; not ductile; low boiling points?
metalloids
nonmetals
metals
semi-metals
18
What is the family name of Group (17) 7A?
alkali metals
noble gases
fluorine family
halogens
19
How many protons and electrons does bromine-81?
35
46
80
45
20
How many valence electrons does the alkaline earth metals family (Group 2A) have?
4 valence electrons
2 valence electrons
3 valence electrons
1 valence electrons
21
What is the purpose of the zigzag line on the periodic table?
separate from metals and transition metals
separate from the metals and nonmetals
separates the toxic from nontoxic
separate the gases from liquids
22
Which element is in the halogen family?
hydrogen (H)
copper (Cu)
chlorine (Cl)
neon (Ne)
23
What does the number, "41", represent in potassium-41?
#of protons
atomic number
mass number
atomic mass
24
How are elements listed in rows within the periodic table?
by their atomic mass
in alphabetical order
by their chemical reactivity
by their atomic number
25
Which of the following element is NOT in the same family?
Be
Ca
Se
Ra
26
How many electrons does Scandium (Sc) have?
3
4
45
21
27
Which particle determines the atoms unique identity as an element
electron
proton
neutron
28
What is the chemical symbol for silver?
Ag
Si
Sr
S
29
What is the charge of the proton?
no charge
negative
neutral
positive
30
Families on the periodic table are grouped together based on
similar properties
similar names
similar masses
No special arrangement
