CORRECT ANSWER WITH EXPLANATION GRADED A+
STUDY GUIDE SOUTHERN NEW HAMPSHIRE UNIVERSITY
1. Inorganic chemistry is the study of:
A. Non-carbon compounds
B. Living organisms
C. DNA only
D. Proteins only
Answer: A
Rationale: Inorganic chemistry focuses on non-organic (non-carbon-based) substances.
2. The periodic table organizes elements by:
A. Atomic number
B. Color
C. Mass only
D. Density only
Answer: A
Rationale: Elements are arranged by increasing atomic number.
3. An element is defined as a substance made of:
A. One type of atom
B. Two atoms
C. Mixtures
D. Compounds only
Answer: A
Rationale: Elements contain identical atoms.
4. Metals are generally:
A. Good conductors
B. Poor conductors
C. Non-conductors
D. Gases only
Answer: A
Rationale: Metals conduct heat and electricity.
5. Non-metals are generally:
A. Poor conductors
, B. Good conductors
C. Always shiny
D. Always solid
Answer: A
Rationale: Non-metals do not conduct well.
6. Metalloids have properties of:
A. Metals and non-metals
B. Only metals
C. Only gases
D. Only liquids
Answer: A
Rationale: Intermediate properties.
7. Alkali metals are found in:
A. Group 1
B. Group 2
C. Group 17
D. Group 18
Answer: A
Rationale: Highly reactive metals.
8. Alkali metals react vigorously with:
A. Water
B. Oxygen only
C. Helium
D. Neon
Answer: A
Rationale: Produce hydroxides and hydrogen gas.
9. Alkaline earth metals are in:
A. Group 2
B. Group 1
C. Group 17
D. Group 18
Answer: A
Rationale: Second column of periodic table.
10. Halogens are found in:
A. Group 17
, B. Group 1
C. Group 2
D. Group 18
Answer: A
Rationale: Highly reactive non-metals.
11. Noble gases are:
A. Chemically inert
B. Highly reactive
C. Metals
D. Acids
Answer: A
Rationale: Stable electron configuration.
12. Atomic number represents:
A. Number of protons
B. Neutrons
C. Electrons only
D. Mass only
Answer: A
Rationale: Defines the element.
13. Mass number is:
A. Protons + neutrons
B. Protons only
C. Electrons only
D. Neutrons only
Answer: A
Rationale: Total nuclear particles.
14. Isotopes are atoms with same:
A. Protons but different neutrons
B. Electrons only
C. Mass only
D. Charges only
Answer: A
Rationale: Same element, different mass.
15. Ions are formed by:
A. Gain or loss of electrons