WorksheetsThe atom (DHS Test)
Total questions: 25
Worksheet time: 14mins
How many Known elements are there?
118
115
120
215
What is a particle?
A small piece or fragment
A basic unit of matter
Pure chemical substance
a large part
What is an atom?
A small piece of fragment
A basic unit of matter
Pure chemical substance
a measurement
What is an element?
A small piece of fragment
A basic unit of matter
Pure chemical substance of one type of atom
something you can use to identify an atom
What is a property?
Something you can use to identify an element.
A basic unit of matter
Pure chemical substance
something you can use to identify an atom
Columns in the periodic table are called?
Groups
Periods
Rows in the periodic table are called?
Groups
Periods
The two main groups of elements are?
Groups and rows
Metals and non metals
Electrons and protons
Alkaline and acid
The parts of the atom are?
Nucleus, protons and electrons
Protons, electrons and necleus
Neutrons, protons and electrons
Neutrons, elctrons and nucleus
The nucleus contains?
protons and electrons
protons and neutrons
neutrons and electrons
protons
The charge of a proton is
(a)
The charge of a electron is
(a)
atoms are
electrically positive
electrically neutral
electrically negative
electrical
The atomic number is?
The protons plus the neutrons
The number of protons and neutrons (they're the same)
The number of protons and electrons (they're the same)
Protons plus the electrons
The mass number is
the fixed number of protons
the protons plus the neutrons
protons plus electrons
fixed number of neutrons
the periodic table is set it terms of atomic number, so Groups have similar
Chemical properties and the same number of electrons in the middle shell
Chemical properties and a similar number of electrons in the valence shell
Chemical properties and the same number of protons in the valence shell
Chemical properties and the same number of electrons in the valence shell
The maximum number of electrons in each shell is
2,8,18,32
2,8,8,18
2,2,8,8
2,18,8,22
atoms are most stable when
their valence shells are incomplete
their valence shells are full
their necleus is unbalanced
they become an ion
ionic bonds are between
metals and metalloids
Metals and metals
nonmetals and nonmetals
metals and nonmetals
During ionic bonding
Metals gain electrons and
non metals lose electrons
Metals gain protons and
non metals lose protons
Metals lose electrons and
non metals gain electrons
Metals lose electrons and
non metals gain protons
When metals become positive and nonmetals become negative,how does ionic bonding occur
The ions (unbalanced atoms) are oppositively charged and therefore attract
The ions (unbalanced atoms) are similarly charged and therefore attract
Covalent bonding is between
Nonmetals and metals
Nonmetals and metalloids
Nonmetals and nonmetals
metals and metalloids
Covalet bonding is when
atoms share protons so that they have full nuclei
atoms share electrons so that they have full valence shells
particles share electrons so that they have full valence shells
atoms loseelectrons so that they have empty valence shells
(..........)'s don't conduct elctricity with the exception of (........)
metals, carbon
metals, metalloids
nonmetals, carbon
elements,metals
Metals (.........) when heated
become smaller
expand
curve
become thinner
