CHEMISTRY 101 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS FULL SOLUTION

CHEMISTRY 101 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS FULL
SOLUTION

●● Proton
Answer: Positively charged particle in nucleus


●● Neutron
Answer: Neutral particle in nucleus


●● Electron
Answer: Negatively charged particle in orbitals


●● Atomic Number
Answer: Number of protons


●● Mass Number
Answer: Protons + neutrons


●● Groups
Answer: Columns with similar properties

, ●● Periods
Answer: Rows showing energy levels


●● Alkali Metals
Answer: Group 1, very reactive


●● Halogens
Answer: Group 17


●● Noble Gases
Answer: Group 18, stable/inert


●● Ionic Bond
Answer: Transfer of electrons (metal + nonmetal)


●● Covalent Bond
Answer: Sharing electrons (nonmetal + nonmetal)


●● Hydrogen Bond
Answer: Weak attraction (water & DNA)