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