Chapter 9 Elements & the Periodic Table

1. Chapter 9Elements & the Periodic Table

2. In the periodic table, the most reactive metals are found • In Group 1, the first column on the left • In Period 1, the first row across the top • In Groups 13-16 in the center • In periods 6& 7 at the bottom

3. Which of these statements about a column of the periodic table is true? • The elements have similar characteristics. • The elements have a wide range of characteristics. • The elements have the same atomic number. • The elements have the same atomic mass.

4. At room temperature, more than half of the nonmetal elements are • Alloys. • Gases • Liquids. • Solids.

5. The elements that do not ordinarily form compounds are • elements in the carbon family. • metals. • halogens. • noble gases.

6. In general, which of the following statements about metals is true? • Metals need to be stored in sealed containers for safety. • Metals are malleable, ductile and can carry electric current. • Metals are highly reactive substances. • Metals do not react with oxygen.

7. From an element’s location in the periodic table, you can predict • its properties. • its chemical name. • its chemical symbol. • when it was discovered.

8. The atomic number of an element is based on the • mass of its nucleus. • number of electrons around its core. • number of protons in its nucleus. • number of neutrons in its nucleus.

9. Mendeleev created the first periodic table by arranging elements in order of • decreasing atomic mass. • increasing atomic mass. • increasing atomic number. • increasing melting points and densities.

10. Alkali metals are so reactive they are • synthetically made in laboratories. • found combined with other elements. • found in igneous rocks. • bonded to noble gases.

11. The two rows at the bottom of the periodic table are called the • lanthanides and halogens. • actinides and transuraniums. • transition metals and transuraniums. • lanthanides and actinides.

12. Fluorine, chlorine, bromine and iodine are part of a family called • noble gases. • metalloids. • halogens. • alkali metals.

13. Which group of elements have some properties of metals and some properties of nonmetals? • noble gases • metalloids • halogens • transition metals

14. Which particles in atoms have a negative charge? • electrons • protons • neutrons • nuclei

15. Which parts of the atom move around outside of the nucleus? • atomic mass units • electrons • protons • neutrons

16. The elements in a row of the periodic table • are in the same family. • have the same or nearly the same properties. • have the same average atomic mass. • have properties that change in a pattern.

17. In an atom, the number of protons equals the number of • nuclei. • electrons. • neutrons. • isotopes.

18. A material is said to be ductile if it • can be pulled out, or drawn, into a long wire. • can be hammered or rolled into flat sheets and other shapes. • can transfer heat or electricity to another material. • is a mixture of a metal with at least one other element.

19. Which group contains the most elements? • metalloids • nonmetals • metals • transition elements

20. A material can be considered malleable if 1. It is shiny or sparkly 2. It can transfer heat or electricity to another material. 3. It is a mixture of a metal with at least one other element. 4. It can be hammered or rolled into flat sheets and other shapes.

21. The modern periodic table is organized according to • Atomic mass • Number of neutrons • Type of isotope • Atomic number

22. Nonmetals are found on the ___ side of the periodic table and are _______ • Left, soft and shiny • Right, hard and dense • Middle, semiconductors and dull • Right, brittle and dull • Bottom, synthetic and dense

23. Atoms with the same number of protons but different number of neutrons are called • Transuranium elements • Transition metals • Metalloids • Molecules • Compounds • Isotopes

24. Two chemical properties of metals are • Electrical conductivity and reactivity • Corrosion and luster • Malleability and ductility • Reactivity and corrosion

25. Most metals are in a ______ state at room temperature • Gaseous • Liquid • Solid • Isotopic • corrosive

26. Deterioration that occurs because of being in an environment is called • Corrosion • Reactivity • Brittleness • Electrical conductivity • Thermal conductivity

27. Most of the elements that touch a zigzag line in the periodic table belong to the • Transuranium elements • Nonmetals • Metals • Transition metals • Halogens • Metalloids • Noble gases

28. Which nonmetal has properties so unlike the other non-metals that it is in its own family and place on the periodic table? • Nitrogen • Oxygen • Selenium • Hydrogen • Chlorine

29. All elements that have a higher atomic number than 95 are called • Transition elements • Transuranium elements • Metalloids • Lanthanides • Mixed group metals

30. Which is correct? • Rows are groups, columns are families • Rows are families, columns are periods • Rows are families, columns are groups • Rows are periods, columns are families

31. Which is not true about neutrons? • They are found in the nucleus • They have a negative charge • They make up the mass of the atom with the protons • They can vary in atoms of the same elements

32. Challenge: Can you name the first 10 elements in the periodic table in order?