WorksheetsBP ATOMIC MODEL & CHEMICAL BONDS
Total questions: 20
Worksheet time: 10mins
How do scientists know how atoms are structured?
a. By looking at them under a microscope.
b. By running experiments that expose their properties.
c. By examining only the largest atoms.
d. By splitting them apart.
What can you conclude from the fact that scientists continue to update the atomic model?
a. New information about atoms continues to be
discovered.
b. Old information about atoms is completely useless.
c. Scientists did not have any information about atoms
until a few years ago.
d. Scientists still have no idea what atoms look like.
What contribution did John Dalton make to atomic theory?
a. He discovered that every atom was positively
charged.
b. He discovered that every element consisted of one
type of atom.
c. He discovered that atoms had nuclei.
d. He discovered that atoms could be divided into
smaller parts.
Place the following scientists in order, from earliest to latest:
A) Ernest Rutherford;
B) J.J. Thomson;
C) John Dalton
a. B, C, A
b. C, A, B
c. A, C, B
d. C, B, A
The majority of an atom's mass exists where?
a. In the nucleus
b. In the electron cloud
c. In the space between the nucleus and the electrons
d. In the neutrons
What are electrons?
a. Positively charged particles
b. Neutrally charged particles
c. Negatively charged particles
d. Uncharged particles
Ernest Rutherford discovered that atoms were mostly:
a. Negatively charged
b. Positively charged
c. Electrons
d. Empty space
What does the nucleus of an atom contain?
a. Electrons and neutrons
b. Protons and neutrons
c. Neutrinos and positrons
d. DNA and RNA
How are neutrons different from protons and electrons?
a. They are more massive than protons and electrons.
b. They have no electrical charge.
c. They are less massive than protons and electrons.
d. Protons and electrons exist in atomic nuclei; neutrons
orbit the nucleus in a "cloud."
How are electrons arranged in an atom?
a. In groups of five
b. In energy levels
c. By color
d. By shape
If an atom has no charge, which of the following must be true?
a. It has more neutrons than protons or electrons.
b. There are only neutrons inside the atom.
c. Its number of protons is equal to its number of
electrons.
d. The neutrons in the atom outnumber the electrons and
protons.
Based on what you know about atomic structure, what can you infer about the word "nuclear?"
a. It relates to protons and neutrons.
b. It relates to electrons.
c. It relates to neutrons only.
d. It relates to ions only.
Which of these is an ion?
An atom with 10 electrons must have how many shells?
a. 1
b. 2
c. 8
d. 10
Which of the following atoms is most likely to bond with another atom?
An atom has 15 total electrons. How many electrons does it have in its outer shell?
a. Three
b. Four
c. Five
d. Six
The relationship between the number of electrons in
an atom's outer shell and the atom's tendency to bond
is called the octet rule. What can you infer about the
meaning of "octet?"
a. It refers to negative charges.
b. It refers to sets of eight.
c. It refers to explosive substances.
d. It refers to different states of matter.
Atom A has seven electrons in its outer shell. Atom B has one electron in its outer shell. They react and bond. Now, Atom A has eight electrons in its outer shell. What kind of bond has formed?
a. Covalent
b. Ionic
c. Metallic
d. Electron
Cations have positive charges. Anions have negative charges. What force draws the two together?
a. Magnetic attraction
b. Ionic attraction
c. Electromagnetic attraction
d. Electrostatic attraction
Substance M is a blue, brittle solid. Substance N is a colorless, flammable gas. What can we predict about the compound created when M and N form a covalent bond?
a. It will be a liquid, since M is a solid and N is a gas.
b. It will be blue, since M is blue and N is colorless.
c. It will probably be flammable, since N is flammable.
d. There's no way to tell based on the information given.
