Physical Science
Take 10
Week #11
SPS 1- Atomic Structure
Day 1 Question 1
The three fundamental particles of the
atom are
A. Mesons, Quarks and Anti-neutrino
B. Positron, Neutrino & Gamma Rays
C. Proton, Neutron and Electron
D. Nucleus, Anti-quarks and Electrons
Day 1 Question 2
The smallest particle of an element which
can take part in chemical reactions and
may or may not exist independently is
the
A. neutron
B. atom
C. nucleus
D. compound
Day 1 Answers
1. The three fundamental particles of
the atom are
C. Proton, Neutron and Electron
2. The smallest particle of an element
which can take part in chemical
reactions and may or may not exist
independently is the
B. atom
Day 2 Question 1
What distinguishes atoms of different
elements?
A. number of protons plus neutrons
B. number of protons in an element's
nucleus
C. number of neutrons
D. number of electrons
Day 2 Question 2
In the electron cloud model of the atom, what
does the electron cloud represent?
A. a cloud of many tiny electrons surrounding
an atom
B. the probable location of electrons within
an atom
C. layered clouds of electrons resembling a
tiny atmosphere within an atom
D. a cloud of electrons scattered throughout a
positively charged nucleus
Day 2 Answers
1. What distinguishes atoms of different
elements?
B. number of protons in an element's
nucleus
2. In the electron cloud model of the
atom, what does the electron cloud
represent?
B. the probable location of electrons
within an atom
Day 3 Question 1
The mass number of an atom is
equal to the number of
A. electrons and protons.
B. electrons and isotopes.
C. isotopes and neutrons.
D. protons and neutrons.
Day 3 Question 2
An isotope of phosphorus contains 15
electrons, 15 protons, and 17
neutrons. What is the name of this
isotope?
A. phosphorus-15
B. phosphorus-30
C. phosphorus-32
D. phosphorus-47
Day 3 Answers
1. The mass number of an atom is equal to
the number of
D. protons and neutrons.
2. An isotope of phosphorus contains 15
electrons, 15 protons, and 17 neutrons.
What is the name of this isotope?
C. phosphorus-32
Day 4 Question 1
How are isotopes of the same element
different?
A. They have different numbers of protons.
B. They have different numbers of neutrons.
C. They have different physical properties.
D. They have different chemical properties.
Day 4 Question 2
What force is primarily responsible for
holding electrons around the
nucleus of an atom?
A. gravity
B. electromagnetic force
C. strong force
D. weak force
Day 4 Answers
1. How are isotopes of the same element
different? .
B. They have different numbers of neutrons.
2. What force is primarily responsible for
holding electrons around the nucleus of an
atom?
B. electromagnetic force
Day 5 Question 1
Which of the following statements best explains why
potassium (K) reacts easily with bromine (Br)?
A. Potassium and bromine both have valence electrons in
the fourth energy level.
B. Potassium and bromine have the same number of
electrons in their highest energy levels.
C. Potassium has one electron in its highest energy level,
and bromine needs one electron to complete its
highest energy level.
D. Potassium needs one electron to complete its highest
energy level, and bromine has an extra electron in its
highest energy level.
Day 5 Question 2
Which element has the electron
configuration 2, 5?
A. boron
B. nitrogen
C. fluorine
D. phosphorus
Day 5 Answers
Which of the following statements best
explains why potassium (K) reacts easily
with bromine (Br)?
C. Potassium has one electron in its highest
energy level, and bromine needs one
electron to complete its highest energy
level.
2. Which element has the electron
configuration 1s=2 2s=2 2p=3?
B. nitrogen