WorksheetsTEK: 8.5A, 8.5B, 8.5C, 6.6A
Total questions: 38
Worksheet time: 2hrs 26mins
______ always gives the identify of the atom.
Protons
Neutrons
Electrons
Elements in the same period/row have the same--
# of valence electrons
# of protons
# of energy shells
# of neutrons
How many periods are on the Periodic Table?
6
7
8
9
The mass of the atom is located ---
in the Nucleus
in the Electron Cloud
protons only
neutrons only
Which element is NOT in Period 3 on the Periodic Table?
Na
Ar
P
Ne
These two subatomic particles contribute to the mass of the atom.
Protons and Electrons
Protons and Neutrons
Electrons and Neutrons
The volume of the atom is located in the --
in the Nucleus
in the Electron Cloud
The atoms of a certain element each contain 18 protons and 8 valence electrons.
What is the element's name?
Argon
Krypton
Neon
Sodium
How many protons will the element in Group 7A, Period 4 have?
9
16
34
35
How many electrons will the element in Group 3A, Period 4 have?
31
13
11
54
What element has similar properties of Cesium (Cs), but a larger atomic mass?
Magnesium (Mg)
Barium (Ba)
Rubidium (Rb)
Francium (Fr)
Elements in the same group/family--
have the same # of valence
behave the same
have the same # of energy shells
are in the same period
How many neutrons will the element in Group 2A, Period 2 have?
2
3
5
6
How many neutrons will an atom of Calcium (Ca) have?
10
14
16
20
These types of elements are BRITTLE and DO NOT conduct electricity.
Metals
Nonmetals
Metalloids
An atom of a certain element has 53 protons, 53 electrons and a mass number of 127.
How many neutrons are in this atom?
64
74
106
180
Which elements have 3 valence electrons?
Scandium
Boron
Aluminum
Lithium
Hydrogen (H) is a --
Metal
Nonmetal
Metalloid
Aluminum (Al) is a --
Metal
Nonmetal
Metalloid
Oxygen (O) is a --
Metal
Nonmetal
Metalloid
Scandium (Sc) and Calcium (Ca) are both in the same group/family.
True
False
An element is shiny, solid at room temperature, and has two valence electrons. Which of these elements could be in this group?
Lithium (Li)
Strontium (Sr)
Aluminum (Al)
Silicon (Si)
Group 8A are called Alkali metals and are the most reactive group.
True
False
The electron cloud contains electrons and --
protons
neutrons
gas and dust
empty space
Which of the following is the best description of an atom?
A core of protons surrounded by electrons
Protons and neutrons grouped in loose arrangements
A core of protons and neutrons surrounded by electrons
Protons, neutrons, and electrons grouped in a solid core
What statement about a proton is correct?
A proton has no electrical charge
A proton has a positive electrical charge
A proton has a negative electrical charge
A proton can have either a positive or a negative electrical charge
A neutral atom is an atom with the same number of:
electrons and neutrons
protons and neutrons
protons and electrons
electrons and valence electrons
the electrons in the electron cloud--
remain in place
move along a pathway
vibrate in place
move about chaotically with no pathway
The atomic number of an atom is determined by the number of --
Protons in the atom's nucleus
Neutrons in the atom's nucleus
Electrons in the atom's electron cloud
Protons and neutrons in the atom's nucleus
Nitrogen has a mass of 14 AMU and 7 protons. How many neutrons does nitrogen have?
21
14
7
8
Valence electrons determine an atom's--
proton number
chemical reactivity
atomic mass
atomic number
Most elements in the Periodic Table are classified as --
Metals
Noble gases
Nonmetals
Reactants
What types of particles are found in the cloud surrounding the atom's nucleus?
Positively charged particles and negatively charged particles
Negatively charged particles only
Neutral particles and positively charged particles
Positively charged particles only
The electrons in the electron cloud
remain in place
vibrate in place
move along a pathway
move about chaotically with no pathway
Which description best describes a Neutron?
positive charge, 1 amu, located in the nucleus
negative charge, 0 amu, located in the electron cloud
neutral charge, 1 amu, located in the nucleus
negative charge, 1 amu, located in the nucleus
Which is NOT found in the nucleus of an atom?
Neutrons
Protons
the mass of an atom
electrons
What do the letters A=P=E represent?
atomic number, protons, electrons
atomic mass, protons, electrons
atomic number, periods, energy shells
atomic mass, periods, energy shells
What do the letters in M-A=N represent?
mass number, atomic number, nucleus
atomic mass, atomic number, neutrons
mass number, atomic mass, neutrons
atomic mass, atomic number, nucleus
