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?
