WorksheetsAtomic Structure
Total questions: 40
Worksheet time: 21mins
Aristotle, a Greek philospher, thought that .....
sweet objects had round atoms
atoms have four protons
atoms have four elements
The word atom comes from the Greek word ____
yasou
Atomos
feta
democritus
who developed the periodic table of elements?
Dimitri Mendelev
Domnique Mendelev
Aristotle
Neils Bohr
The glowing stream in the cathode ray tube appeared when _____
an electric current was passed through
magnets were held near the tube
xrays were being taken
Atomos means ____
invincible
invisible
indivisable
infinity
The most current model of the atom that's used in modern atomic theory is referred to as
Bohr model
Plum pudding model
solar system model
apple pie model
An atom that has an Equal numbers of protons and electrons is referred to as
electrically neutral
positively charged
negatively charged
metastable
Electrons were discovered by _____
JJ Watt
JJ Thompson
JJ Thomas
JJ Timothy
The atom is made of _ fundamental particles
1
2
3
4
What units are used to measure nuclear binding energy?
mas
kvP
MeV
Ev
Cations have
more neutrons than protons
more protons than neutrons
more electrons than neutrons
more protons than electrons
Protons have one unit of positive electrical charge and a mass of
3x10^8 kg
1.85 x 10 ^-27 kg
1.673 x 10 ^-27 kg
An atom has 6 protons, 7 neutrons, and 8 electrons. What type of ion is this ?
Cation
Anode
Anion
Onion
These Greek philosophers came up with the idea of a tiny structure called the atom
Neils Bohr and Rutherford
Aristotle and Einstein
Leucippus and Socrates
Leucippus and Democritus
What is the Law of Electrostatics?
oppsites charges attract and similar charges repel
opposite charges attract and similar charges attract
energy is neither created nor destroyed
E=mc^2
___ give the atom its mass
electrons
protons
nucleons
neutrons
The nucleus is held together by a strong force known as
Nuclear binding energy
Jedi Force
nucleolus
electron binding energy
Nuclear binding energy comes from
nucleons sacrificing their mass
nucleus gaining an electron
electrons spinning at the speed of light
electrons jumping from shell to shell
Einsteins equation E=m(c)^2 means
Energy = mass x speed of light sqaured
Electricity = mass x accleration
Energy = mass x carbon squared
Why do electrons closer to the nucleus experience a stronger binding energy?
those electrons are very negative
the force of attraction is inversely proportional to the square of the distance
Coulomb's Law
What are the Two types of atomic interactions that produce x-rays
Brehmsstrahlung and Classical
Characteristic and Brehmsstrahlung
Characteristic and Compton
Classical and Coherent
In Characteristic interactions, an electron is ejected from the
k shell
valence shell
nucleus
filament
The fundamental quantities in units of measurements are
mass length and time
mass weight and length
weight speed and energy
mass time and velocity
What is the maximum number of electrons that the M shell can have?
8
9
18
2
in the formula 2n^2, n represents the
shell number
number of electrons
number of neutrons
binding energy
The octet rule states that _____ can only ever hold ___
k shell, 2 electrons
valence shell, 8 electrons
outer shell, 6 electrons
The energy required to remove an electron from its orbit is called
electron binding energy
speed of light
characteristic interaction
brehms
The atomic number is the
number of protons
number of nucleons
Z number
mass of the nucleus
146 N and 147 N can be classifed as
Isobars
Isomers
Isotopes
Isotones
A ______ is Two or more atoms bonded together in a fixed proportion/structure
nucleus
compound
molecule
The Becquerel is used to quantify _____
radioactivity
absorbed dose
radiation exposure
exposure to sunlight
The SI unit of rem is
sievert
Gray
rad
curie
A compound is
a bond created by ions
a molecule that contains atleast two different elements
an atom with two electrons
an element with two atoms
which of these is a molecule and a compound
O2
H4
NaCl
H2O
Which of these is a noble gas
Oxygen
Nitrogen
Xenon
Hydrogen
The compound NaCl (sodium chloride) has
an ionic bond
covalent bond
non ionic bond
friendship bond
This bond is when Two atoms share some of their outer electrons
Ionic bond
valence bond
covalent bond
The SI unit for absorbed dose is
rad
Gray
Becquerel
rem
_____ is used to assess the potential for long-term effects that might occur in the future.
Absorbed dose
Equivlaent dose
Effective dose
What are the two types of chemical bonds in atoms
ionic and non ionic
ionic and covalent
Ionic and Osmolar
