Fal: Periodic Table

Question 1

How do we calculate the atomic mass?

Accepted Answer

Average of all isotopes.

Question 2

Lithium has 3 electrons. How many valance electrons does it have?

Accepted Answer

1

Question 3

Sodium (Na) is in group 1 or family 1. How many valance electrons does it have?

Accepted Answer

1

Question 4

Groups (families) on the periodic table are arranged _______________.

Accepted Answer

Vertically

Question 5

Which group of elements on the periodic table are all gases at room temperature?

Accepted Answer

Noble gases

Question 6

What is the number on top of the symbol in each box.

Accepted Answer

atomic number

Question 7

Which group of elements is un-reactive?

Accepted Answer

Noble Gases

Question 8

Which group includes some of the most familiar elements like nickel, iron, and copper?

Accepted Answer

Transition metals

Question 9

Argon has 10 electrons. How many valance electrons does it have?

Accepted Answer

8

Question 10

How are elements in the periodic table organized?

Accepted Answer

Based on physical and chemical properties

Question 11

Have we located all of the elements of the periodic table in nature?

Accepted Answer

no

Question 12

An element is found with an atomic number of 20 and a atomic weight of 45. How many electrons?

Accepted Answer

20

Question 13

Elements with an atomic number higher than __ are not found naturally.

Accepted Answer

92

Question 14

Each horizontal row on the periodic table is called what?

Accepted Answer

Period

Question 15

How do we know the number of electrons?

Accepted Answer

The electrons = protons. Check the atomic number.

Question 16

What are valance electrons?

Accepted Answer

The electrons in the outer shell.

Question 17

What is the name of Mrs. Fal's dog?

Accepted Answer

Yoda

Question 18

Which group on the periodic table is the most reactive?

Accepted Answer

Alkali metals

Question 19

Most elements on the periodic table are classified as __________.

Accepted Answer

Metals

Question 20

Are there more metals or non metals?

Accepted Answer

metals

Question 21

Which accurately describes nonmetals?

Accepted Answer

Poor conductors of electricity

Question 22

This group is named _________ because they have a tendency to form salts with group 1 elements.

Accepted Answer

Halogens

Question 23

What symbol for helium?

Accepted Answer

He

Question 24

The atomic number is the number or what?

Accepted Answer

protons

Question 25

How many periods are there in the periodic table?

Accepted Answer

7

Fal: Periodic Table

Questions 25

Fal: Periodic Table

Questions 25