FREE CHEMISTRY AND STUDY GAMES ABOUT CHEM 3

PDF Download

FREE CHEMISTRY AND STUDY GAMES ABOUT CHEM 3

AWAIS 8 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -74 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Nonmetals:

Answer:

Poor conductors of heat and electricity, lower melting point, tightly held valence electrons, tend to gain and share electrons in reaction. Gases and room temp.

Question 2: Metals

Answer:

Have loosely bound valence electrons

Question 3: Three to eight valence electrons is

Answer:

Nonmetals Question 4: Why do elements in the same group period have properties that are different from one another?

Answer:

Because the number of valence electrons increase as you move from left to right across the period.

Question 5: At room temperature, what state (solid, gas, or plasma) are the majority of the elements in on the periodic table?

Answer:

Solid

Question 6: Which nonmetals family considered most reactive?

Answer:

Halogens

Question 7: At the right side of the periodic table is

Answer:

Nonmetals

Question 8: The mordern periodic table is arranged according to it's

Answer:

atomic number

Question 9: Poor conducators of heat is

Answer:

Nonmetals

Question 10: What is the purpose of the zigzag line on the periodic table?

Answer:

Transition between metals and nonmetals.Elements on the line have properties of both.

Question 11: Noble gases

Answer:

Are very unreactive

Question 12: Atomic Radius

Answer:

Radius of atoms, describe the size of atoms.From left to right it's decrease, and from top to bottom it's decrease.

Question 13: All of the following elements are metals except

Answer:

Chlorine

Question 14: Tightly held valence is

Answer:

Nonmetals

Question 15: Usually quite brittle is

Answer:

Nonmetals

Question 16: First period

Answer:

Contains two elements

Question 17: Which element has the higest electronegativity?

Answer:

N

Question 18: An elements found in group 17 is

Answer:

Halogens

Question 19: A variety of colors is

Answer:

Nonmetals Question 20: In going from left to right in any given row in the periodic table the size of the atoms generally

Answer:

decrease

Question 21: Reactivity Metals

Answer:

Reactivity from highest to lowest.From left to right it's decrease, and from top to bottom it's increase.Question 22: A period 3 elements has its valence electrons in the --------- energy level.

Answer:

three

Question 23: Which elements has the lowest electronegativity?

Answer:

Cs

Question 24: semiconductors is a

Answer:

Metalloids

Question 25: Fluorine, Bromine, or iodine is

Answer:

Halogens

Question 26: Is harder and denser than its alkali neighbor

Answer:

Alkaline earth metals

Question 27: Which elements has the lowest first ionization energy?

Answer:

At Question 28: The --------- electrons of an elements in the second period, for example are in the ---------- second energy level.

Answer:

Valence, second