Teacher Activities
Worksheet: Atomic Structure
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In this worksheet, we will practice describing the Bohr model of the atom and the particles that make up atoms.
When an electron in an atom moves from a higher energy level to a lower energy level, it electromagnetic radiation.
Areleases
Babsorbs
If an atom has 4 protons, 3 neutrons, and 4 electrons, what is the relative charge of the atom?
If an atom has 9 protons and 7 electrons, what is the relative charge of the atom?
What is the relative charge of a proton?
Are neutrons positively charged, negatively charged, or neutral?
APositively charged
BNegatively charged
CNeutral
If an ion has 14 electrons but a relative charge of +2, how many protons are in the nucleus of the ion?
What are the 2 types of particles that make up the nucleus of an atom?
ANeutrons and electrons
BProtons and electrons
CProtons and neutrons
What is the relative charge of an electron?
In the nuclear model of the atom, does the nucleus have a positive charge, a negative charge, or no charge?
ANo charge
BNegative charge
CPositive charge
What is the relative charge of a neutron?
When an electron electromagnetic radiation, it moves to a higher energy level in the atom.
Aabsorbs
Breleases
Are electrons positively charged, negatively charged, or neutral?
ANeutral
BPositively charged
CNegatively charged
If a charged atom has 8 protons in its nucleus but a relative charge of − 2 , how many electrons does it have?
If a neutral atom has 12 protons in its nucleus, how many electrons does it have?
What part of an atom contains most of its mass?
AThe neutrons only
BThe electron cloud
CThe protons only
DThe nucleus
Which of the following statements about the structure of an atom is correct?
AAn atom consists of a sphere of positive charge with electrons bound to its surface.
BAn atom consists of a positively charged nucleus, which contains protons and electrons, and a negatively charged neutron cloud surrounding the nucleus.
CAn atom consists of a negatively charged nucleus, which contains neutrons, and a positively charged proton cloud surrounding the nucleus.
DAn atom consists of a positively charged nucleus, which contains protons and neutrons, and a negatively charged electron cloud surrounding the nucleus.
EAn atom consists of an electrically neutral nucleus containing protons and electrons.
If a charged atom has 6 protons in its nucleus but a relative charge of +1 overall, how many electrons does the atom have?
The image shows a diagram of an atom, which is not to scale.