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Periodic Table and Bonding
Periodic Table and Bonding
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Periodic Table and Bonding
Flashcards
30 cards
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Questions
30
Answers
1
The periodic table shows that carbon has six protons. This means that a carbon atom also has
six electrons.
six neutrons.
more protons than electrons.
an atomic mass that equals six.
2
The electrons in the outermost energy level of an atom are called ____ electrons.
negative.
positive.
nucleus.
valence.
3
The atomic number of an atom is equal to the number of _____ in ______
protons, nucleus
protons, neutrons
protons, energy levels
protons, electrons
4
The atoms in a column of the periodic table all have
the same number of electrons in the outer energy level.
the same abbreviation.
the same number of electrons.
the same number of energy levels.
5
Neutrons are in the nucleus of the atom. A neutron has
twice as much positive charge as a proton.
a negative charge.
a positive charge.
no charge.
6
In an ionic bond, electrons are shared between two atoms.
True
False
7
In the process of covalent bonding, atoms share electrons. This means that
atoms gain electrons and become ions.
protons and neutrons attract.
atoms lose electrons and become ions.
electrons are attracted to the nucleus of both atoms.
8
Neutrons and electrons are attracted to one another.
False
True
9
In the process of ionic bonding
atoms switch protons.
one atom gains electrons and the other atom loses electrons.
both atoms lose electrons.
both atoms gain electrons.
10
Electrons are found in the nucleus of an atom.
False
True
11
Electrons are in regions around the nucleus called energy levels. The first energy level
is closest to the nucleus.
is furthest from the nucleus.
needs more than two electrons to fill it up.
holds the most electrons.
12
An element and an atom are different but related because
an element is made up of al the same type of atom.
an element is made up of different types of atoms.
a molecule is the same as an atom.
an element is smaller than an atom.
13
In the process of ionic bonding, ions come together because
like charges attract each other.
salt is magnetic.
positive and negative ions attract.
opposite charges repel.
14
The atomic mass of an element is
a measure of the density of that element.
the mass of the most common isotope of that element.
the average mass of all the isotopes of the element.
the number of protons and electrons in the atoms.
15
The atomic number of an atom is
negatively charged.
the mass of the atom.
the number of protons added to the number of neutrons.
the number of protons.
16
Neon has 10 protons and 10 electrons. The electrons fill the energy levels in Neon like this:
2 in the first, 4 in the second, and 4 in the third.
2 in the first, 2 in the second, and 6 in the third.
2 in the first, and 8 in the second.
4 in the first, 4 in the second, and 4 in the third.
17
When an atom gains an electron, it forms a ____ ion.
nucleus.
valence.
negative.
positive.
18
The electrons of an atom are located in regions around the nucleus called
energy levels.
positive.
negative.
valence.
19
An electron is in a region outside the nucleus. An electron
has a positive charge.
is larger than a proton and has no charge.
has less mass than a proton and has a negative charge.
is smaller than a proton and has no charge.
20
The atoms of the same element can have different isotopes. An isotope of an atom
is an atom with a different number of neutrons.
has a different atomic number.
is an atom with a different number of protons.
is an atom with a different number of electrons.
21
When an atom loses an electron, it forms a _____ ion.
negative.
positive.
22
Lewis dot structures are a shorthand way of showing only the valance _____ of an atom.
protons
electrons
energy levels.
neutrons
23
It is possible to have a double covalent bond.
False
True
24
In a Lewis dot diagram, the electrons shown
are in the innermost energy level.
always add up to an even number.
always equal the number of protons.
are in the outermost energy level.
25
The first energy level of an atom is closest to the nucleus.
False
True
26
Protons are located in the nucleus of the atom. A proton has
a positive and negative charge
a positive charge
a negative charge
no charge
27
In a covalent bond, electrons are shared between two atoms.
False
True
28
The atomic number of nitrogen is 7. The atomic mass is 14.01. This means that
a small % of nitrogen atoms have more than 7 neutrons.
some nitrogen atoms have fewer than 7 electrons.
a small % of nitrogen atoms have fewer than 7 neutrons.
all nitrogen atoms have exactly 7 neutrons.
29
Different atoms of the same element can have a different number of
energy levels.
protons.
neutrons.
nucleus.
30
A hydrogen atom is made up of one proton and one electron that stay near each other because
two negatives make a positive.
positive and positive charges repel.
positive and negative charges repel.
positive and negative charges attract.
