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Chapter 2 DMAC 2013 Study Guide
What is the total number of electrons in an atom with an atomic number of 13 and a mass
number of 25?
The mass number of an atom best refers to the number of Which part of an atom has no charge?
Which subatomic particle determines an atom's atomic number?
A student proposed the "plum pudding" model of an atom. The student's model is different
from the modern models because modern models show that-
Which of the subatomic particles has a negative charge?
Which of the subatomic particles has a negative charge?
Which of the subatomic particles has no charge?
Which of the subatomic particles has a positive charge?
Which part of an atom contains the protons and neutrons?
Particles within the atomic nucleus that have a neutral charge are called –
Which of the subatomic particles are found in the nucleus and have a neutral charge?
Which of the subatomic particles are found in the nucleus and have a positive charge?
Which of the subatomic particles are found surrounding the nucleus and have a negative
charge?
What is described by the phrase, "a positive nucleus surrounded by a cloud of negative
charges"?
Which best describes two atoms of the same element that have different numbers of
neutrons?
Each letter in the diagram represents an atomic structure found in atoms. Which two letters
correctly identifies the atomic mass of an atom?
Which of these best describes one of the subatomic particles that could be found at
location X in the model of an atom shown above?
It has mass but no charge.
It has no mass and a positive charge.
It has a large mass and a negative charge.
It has no mass and an equal number of positive and negative charges.
Look at the model of an atom shown below.
Which statement best describes one of the subatomic particles that could befound at
location X?
It has mass but no charge.
It has no mass and a positive charge.
It has a large mass and a negative charge.
Choose the best statement that reflects your understanding of Atomic
Mass.
The mass of an atom is the sum of all the electrons added together.
The atomic mass is a sum of the number of protons and neutrons
found in the area surrounding the nucleus.
The nucleus of an atom contains most of the mass and the protons
have more mass than electrons.
Since protons and neutrons have the similar masses; the atomic
mass of an atom is the sum of those two subatomic particles.
Which subatomic particles are found in the nucleus
Atom's are created from elements, all of which are located on the Periodic Table. Atom's,
which are the smallest particles on Earth, are made up of several different parts. The part of
the atom that is located in the outer layers is theWhich of the following best describes an electron?
It has no charge and about the same mass as a proton.
It has a negative charge and much less mass than a proton.
It has a positive charge and much more mass than a neutron.
It has a negative charge and about the same mass as a neutron.
If the dartboard above is used to model an atom, which dart indicates where the
protons and neutrons are located?
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