Chem Test 2 Notes chapter 4

Ace your homework & exams now with Quizwiz!

Elements

1) The primary substances of which all other things are composed are ________.

calcium, phosphorous, oxygen, hydrogen

11) What elements are in hydroxyapatite, Ca5(PO4)3OH, a major compound in human bones and teeth?

The elements in each group have similar chemical properties.

12) Which of the following is a characteristic of the modern periodic table? A) A group is a horizontal row on the periodic table. B) A period is a column on the periodic table. C) The elements in each group have similar chemical properties. D) The B groups contain the representative elements. E) The A groups contain the transition elements.

Most of them are liquids at room temperature.

13) Which of the following properties is not a characteristic of the Group 1A (1) elements (alkali metals)? A) They are shiny. B) They are good conductors of heat. C) They react vigorously with water. D) Most of them are liquids at room temperature. E) They are good conductors of electricity.

A) are unreactive and are rarely found in combination with other elements

14) The Group 8A (18) elements ________.

strontium

15) Which of the following elements is a metal? A) nitrogen B) fluorine C) argon D) strontium E) phosphorus

nitrogen

16) Which of the following elements is a nonmetal? A) nitrogen B) sodium C) iron D) silver E) calcium

silicon

17) Which of the following elements is a metalloid? A) nitrogen B) lithium C) iron D) gold E) silicon

low melting points

18) Which of the following is a characteristic of nonmetals? A) shiny B) malleable C) good conductors of heat D) low melting points E) good conductors of electricity

argon

19) Which of the following elements is a noble gas? A) oxygen B) chlorine C) bromine D) argon E) nitrogen

gold

2) Au is the symbol for ________.

are in the same group

20) The elements lithium, sodium, and potassium ________. A) are isotopes of each other B) are in the same period of elements C) have the same number of neutrons D) are in the same group E) have the same mass number

are in the same period of elements

21) The elements sodium, magnesium, and silicon ________. A) are isotopes of each other B) are in the same period of elements C) have the same number of neutrons D) are in the same group E) have the same mass number

Br

22) Which element would have physical and chemical properties similar to chlorine? A) Ar B) Br C) S D) O E) P

C

23) What is the symbol of the element in Group 4A (14) and Period 2?

strontium

24) The element in this list with chemical properties similar to magnesium is ________. A) sodium B) boron C) carbon D) strontium E) chlorine

helium

25) Identify the noble gas in the following list. A) helium B) nitrogen C) oxygen D) gold E) chlorine

calcium

Ca

Au

Gold

Fe

Iron

Hg

Mercury

K

Potassium

Ag

Silver

Na

Sodium

Al

aluminum


Related study sets

Give Me Liberty Chapters 1-14 Review

View Set

linear transformations, Quadratic Transformations, Quadratic Transformations

View Set

IT341 Chapter 10 - Application Layer

View Set

3. First Week of Development: Ovulation to Implantation

View Set