stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Atoms and the Periodic Table Flashcards | StudBud
Explore
/
Atoms and the Periodic Table
Atoms and the Periodic Table
34 terms
·
StudBud Administration
·
338 plays
summative review of recall/multiple choice for ScienceFusion module H Unit 3
Flashcards
34 cards
F
Practice quiz
P
Host live
L
Questions
34
Answers
1
Calcium is an element. What is the smallest particle of calcium with all of its properties?
an electron from a calcium atom
a proton from a calcium atom
a molecule that contains calcium
an atom of calcium
2
According to the chart, how many protons does Element B have?
20
19
10
9
3
What do elements in the same group on the periodic table have in common?
They have similar chemical properties.
They have the same average atomic mass.
They have similar chemical symbols.
They have the same atomic number.
4
What is true about the position of all metals in the periodic table?
They are in the bottom period.
They are to the left of the zigzag line.
They are in the rightmost column.
They are in the first group.
5
Zinc is located to the left of Gallium. The atomic number of gallium is 31. What is zinc?
31
13
32
30
6
On the periodic table, which of these is true for the elements along the zigzag line?
They are transition metals.
They are metals.
They are metalloids.
They are nonmetals.
7
Which of the following occurs when a sodium atom forms a positively charged sodium ion?
The atom loses one electron.
The atom gains one electron.
The atom gains one proton.
The atom loses one proton.
8
An atom's mass number is 210 and its atomic number is 85. How many neutrons does it have?
85
210
125
295
9
Which of the following is a property of metals?
good electrical conductor
low melting point
good thermal insulator
cannot bend without breaking
10
If a basketball is used as a proton, which object would best represent an electron?
a beach ball
a pea
a bowling ball
a soccer ball
11
What does each box represent on the periodic table?
a compound
an element
a group
a period
12
What must happen for an ion to form?
An atom must gain or lose a neutron.
An atom must gain or lose an electron.
An atom must gain or lose a proton.
An atom must gain or lose a nucleus.
13
In the diagram, which term best describes a unit of carbon dioxide?
element
ion
mixture
molecule
14
Water is made up of units called molecules. Which description best describes a molecule?
a solid ionic compound formed from a 3-D pattern
an attraction between metal ions and free electrons
an atom that has gained or lost electrons
a group of atoms joined by covalent bonds
15
An atom of element gallium (Ga) has 31 protons and 39 neutrons. What is the atomic number?
31
8
70
39
16
Which describes how elements are arranged in the periodic table?
by alphabetical order of name
by increasing atomic mass
by chemical symbol
by increasing atomic number
17
Which properties most likely belong to a metal?
brittle and dull
gaseous and unreactive
liquid and clear
ductile and malleable
18
Metals contain free electrons. Why aren't metals charged as a result?
The electrons easily flow out of the metal.
Metallic bonds pull the charge away from the electrons.
The electrons are balanced by the positive metal ions.
Electrons lose their charge when separated from metal ions.
19
How do most ionic compounds compare with covalent compounds? Ionic compounds....
... are more likely to be liquids at room temp.
... are good insulators of thermal and electrical energy.
... can generally be reshaped without breaking.
... have higher melting and boiling points.
20
Which of these is the chemical symbol for the element whose average atomic mass is 87.62?
Sc
Sr
Y
Rb
21
Which property makes metals good conductors of electricity?
the electrons in a metal can move freely
the positively charged metal ions attract free electrons
the negative charge of electrons cancels the positive ions
the electrons are shared equally by all of the metal atoms
22
Between which of these pairs of elements is a covalent bond most likely to form?
carbon and flourine
potassium and calcium
magnesium and oxygen
sodium and chlorine
23
Which discovery directly caused scientists to revise JJ Thomson's model of the atom?
Atoms for different elements had unique atomic numbers.
The exact location of an electron could not be calculated.
Electrons were found to have a negative charge.
A small mass of positive charge is in the center of an atom.
24
How do covalent bonds form?
Outer electrons on some atoms are destroyed.
Electrons are transferred from one atom to another.
Free electrons move around positive ions.
Atoms of elements share electrons.
25
How does the electron cloud model differ from the Bohr model?
Electron cloud shows there is not empty space in an atom
Electron cloud shows a region where electrons are likely
Electron cloud shows electrons don't have a negative charge
Electron cloud shows all electrons combine to form one mass
26
If you know the atomic number and position on the periodic table of an element, you also know..
the atomic mass of the element
the mass number of any element to its right of left
the atomic number of any element to its right or left
the number of neutrons in an atom of the element
27
What is the mass number of an atom that has 4 protons, 4 electrons, and 5 neutrons?
5
4
13
9
28
Which of the following scientists added negatively-charged particles to the atomic model?
J.J. Thomson
John Dalton
Ernest Rutherford
Niels Bohr
29
What are the columns and rows of the periodic table called?
periods and energy levels
atomic numbers and periods
groups and atomic numbers
groups and periods
30
Which of these is the smallest particle to retain the properties of an element?
an electron
an atom
a proton
a molecule
31
What is the following element's chemical symbol?
40.078
Calcium
Ca
20
32
Which statement is supported by atomic theory?
Atoms are made up of smaller particles called molecules.
Atoms come in different sizes, but most are visible.
Atoms are easily destroyed when matter is cooled or heated.
Atoms combine to make all the substances on Earth.
33
Magnesium has 2 valence electrons; chlorine has 7. What makes 1 unit of their compound?
1 atom of Mg and 1 atom of Cl
2 atoms of Mg and 2 atoms of Cl
1 atom of Mg and 2 atoms of Cl
2 atoms of Mg and 1 atom of Cl
34
Which of these statements describes a fact about an electron cloud?
It is made up of electrons and neutrons.
It is the most massive part of an atom.
It is located in the center of an atom's nucleus.
It is where an atom's electrons are found.
