EMA 3010 EXAM #1 LATEST EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS
Q: Ionic Bonding
Ans: a chemical bond formed between two ions with
opposite charges. There is a transfer of an electron(s) from on
atom to another atom (between a metal and a nonmetal).
Quiz: Covalent Bonding
Ans: a chemical bond in which electron pairs are shared
between atoms. (between a nonmetal and nonmetal).
Quiz: Metallic Bonding
,Ans: chemical bonds that are formed from the attraction
between mobile electrons and fixed, positively charged metallic
atoms. Whereas most chemical bonds are localized between
specific neighboring atoms, metallic bonds extend over the
entire molecular structure. (sea of electrons).
Quiz: Bonding within a Network Covalent Material
Ans: Atoms are bonded in a continuous network of covalent
bonds throughout the material. For example, diamond.
Quiz: Alloy
Ans: A mixture of two or more metals that are metallically
bonded. For example, steel, brass, bronze, etc.
Quiz: Inter vs Intra-molecular forces
, Ans: Inter - forces that exist between molecules (hydrogen
bonding, dipole-dipole bonding, LDF)
Intra - forces that hold atoms together within a molecule
Quiz: Crystalline
Ans: Geometric arrangement of atoms and ions that exhibit
repetitive atomic positions.
Quiz: Polycrystalline
Ans: More than one orientation of a crystal, separated by
amorphous regions called grain boundaries.
Quiz: Amorphous
Ans: Shapeless, having no definite form
Quiz: Unit Cell
QUESTIONS AND CORRECT VERIFIED
ANSWERS
Q: Ionic Bonding
Ans: a chemical bond formed between two ions with
opposite charges. There is a transfer of an electron(s) from on
atom to another atom (between a metal and a nonmetal).
Quiz: Covalent Bonding
Ans: a chemical bond in which electron pairs are shared
between atoms. (between a nonmetal and nonmetal).
Quiz: Metallic Bonding
,Ans: chemical bonds that are formed from the attraction
between mobile electrons and fixed, positively charged metallic
atoms. Whereas most chemical bonds are localized between
specific neighboring atoms, metallic bonds extend over the
entire molecular structure. (sea of electrons).
Quiz: Bonding within a Network Covalent Material
Ans: Atoms are bonded in a continuous network of covalent
bonds throughout the material. For example, diamond.
Quiz: Alloy
Ans: A mixture of two or more metals that are metallically
bonded. For example, steel, brass, bronze, etc.
Quiz: Inter vs Intra-molecular forces
, Ans: Inter - forces that exist between molecules (hydrogen
bonding, dipole-dipole bonding, LDF)
Intra - forces that hold atoms together within a molecule
Quiz: Crystalline
Ans: Geometric arrangement of atoms and ions that exhibit
repetitive atomic positions.
Quiz: Polycrystalline
Ans: More than one orientation of a crystal, separated by
amorphous regions called grain boundaries.
Quiz: Amorphous
Ans: Shapeless, having no definite form
Quiz: Unit Cell
