Unit 2 The Atom Test

Front

A neutral atom may contain 8 protons. Options: 9 neutrons and 10 electrons, 9 neutrons and 8 electrons, 8 neutrons and 10 electrons, 10 neutrons and 9 electrons.

Back

9 neutrons and 8 electrons

Front

You can determine the identity of an element if you know how many _______ it has.

Back

protons

Front

The nucleus of an atom has all of the following characteristics EXCEPT that it:

• is positively charged.
• contains nearly all of the atom’s mass.
• is very dense.
• contains nearly all of the atom’s volume.

Back

contains nearly all of the atom’s volume.

Front

The element Boron has two naturally occurring isotopes- one with an atomic mass of 10.01 and another with an atomic mass of 11.01. Which is the most abundant isotope?

Back

The one with an atomic mass of 11.01.

Front

How many valence electrons does an atom of aluminum typically have?

Back

3

Front

The number of energy levels an atom will have is based on the number of _________ it has.

Back

electrons

Front

Which of the following would NOT be found in the nucleus of an atom? A. protons, B. neutrons, C. electrons, D. quarks

Back

electrons

Front

Which statement about the arrangement of the periodic table is not true?

Back

Metals are found on the right side of the periodic table.

Front

Which of the following elements would be the best conductor of electricity? Bromine, Silicon, Nickel, Krypton

Back

Nickel

Front

Which of the following elements would be the most reactive? Bromine, Silicon, Nickel, Krypton

Back

Bromine