Chemistry Mastery Quiz Review

Which of the following correctly describes the properties of the electron?

• Found in the nucleus, no charge

• Found in the nucleus, charge of -1

• Found outside the nucleus, charge of -1

• Found outside the nucleus, charge of +1

Which types of particles are found in the Nucleus?

• Positively charged particles only

• Positively charged and neutral particles

• Neutral particles only

• Negatively charged particles only

An element has 18 electrons, 14 neutrons, and 18 protons. What is its Atomic Mass?

• 32 AMU

• 36 AMU

• 14 AMU

• 18 AMU

Which particle always determines the identity of an atom?

• The Atomic Mass

• The number of neutrons

• The number of protons

• The number of valence electrons

Which element is described by the table to the right?

• Magnesium (Mg)

• Carbon (C)

• Boron (B)

• Sodium (Na)

Which element is described by the table to the right?

• Magnesium (Mg)

• Calcium (Ca)

• Beryllium (Be)

• Fluorine (F)

Which of the following correctly compares the masses of two subatomic particles?

• The electron has a mass that is similar to that of the proton

• The neutron has a mass that is similar to that of the proton

• The electron is the only particle with mass

• The proton is the only particle with mass

Calcium (Ca) is a metal that is found throughout the human body - a form of it is found in your bones. Which of the following correctly describes atoms of Calcium (Ca)?

• Calcium can be found in Group 1A

• Calcium atoms have 1 valence electrons

• Calcium atoms have 4 valence electrons

• Calcium atoms have 20 protons

Which colored particle determines the reactivity of this atom?

• The clear particle in the center of the atom

• The blue particles surrounding the atom on the inner rings

• The red particles surrounding the atom on the far outside ring

Ms. Tovar is studying an element that has 9 protons and 7 valence electrons. Which statement correctly identifies the element and describes its chemical reactivity?

• The element is Carbon (C) and it is highly reactive

• The element is Fluorine (F) and it is not very reactive

• The element is Carbon (C) and it is not very reactive

• The element is Fluorine (F) and it is highly reactive