Chapter 5 Test

Question 0

Whose work resulted in the revision of the periodic law and the atomic number being used as the organizing factor for the elements of the periodic table?

Answer 0

Moseley

Question 1

Who arranged a number of elements in triads based on similar properties?

Answer 1

Döbereiner

Question 2

What chemist arranged the elements according to increasing atomic masses and thereby discovered the relationship he called the law of octaves?

Answer 2

Newlands

Question 3

It is the lightest most abundant element in the universe, is extremely flammable in air, and is used in the industrial production of ammonia.

Answer 3

Hydrogen.

Question 4

This element constitutes 21% of the earth’s atmosphere and is the must abundant element in the earth’s crust. It is essential for life in all animals and humans.

Answer 4

Oxygen

Question 5

Existing as diatomic molecules, this gas is tasteless, colorless, odorless, and it accounts for approximately 78% of the earth’s atmosphere.

Answer 5

Nitrogen

Question 6

According to the Big Bang theory, the very first elements would probably have been

Answer 6

Hydrogen and helium

Question 7

Oxygen nitrogen, carbon, sulfur

Answer 7

Nonmetals

Question 8

Fluorine,chlorine,iodine,bromine

Answer 8

Halogens

Question 9

Boron,silicon,arsenic,germanium

Answer 9

Metalloids

Question 10

Semiconductors

Answer 10

Metalloids

Question 11

Good conductors of heat and electricity, usually hard, lustrous, malleable, and ductile.

Answer 11

Metals

Question 12

Certain characteristics of both metals and Nonmetals

Answer 12

Metalloids

Question 13

Generally gases or soft solids

Answer 13

Nonmetals

Question 14

Negative ion

Answer 14

Anion

Question 15

The minimum energy required to remove the first electron from its outermost shell to make it a cation

Answer 15

First ionization energy

Question 16

Distance from the center of an atom’s nucleus to its outermost electron

Answer 16

Atomic radius

Question 17

Positive ion

Answer 17

Cation

Question 18

Measure of the attraction between the nucleus and the valence electrons

Answer 18

Electronegativity

Question 19

Amount of energy required to add an electron to a natural atom to form a negative ion.

Answer 19

Electron affinity