Lesson 3

Question 1

Elements numbered 95-118

Answer 1

Synthetic elements

Question 2

How many synthetic elements?

Answer 2

24

Question 3

In ancient times, people believed they could transform one or more material or substance into another through ________.

Answer 3

Alchemy

Question 4

An ancient field that combines philosophy and science.

Answer 4

Alchemy

Question 5

Two goals of alchemy?

Answer 5

Produce
- Philosopher’s Stone
- Elixir of Life

Question 6

A material that could turn ordinary metals such as lead into gold

Answer 6

Philosopher’s Stone

Question 7

What are the chemical processes that alchemy laid the groundwork for?

Answer 7

• Ore refining
• Production of gunpowder
• Manufacture of glass and ceramics
• Leather tanning
• Production of inks, dyes, and paints

Question 8

How humans make new elements at present

Answer 8

Nuclear Reactions

Question 9

2 instruments used to make new elements through nuclear reactions

Answer 9

• Particle Accelerator
• Nuclear Reactor

Question 10

Colliding with subatomic particles

Answer 10

Nuclear Transmutation

Question 11

Releasing subatomic particles

Answer 11

Radioactive Decay

Question 12

Atomic number of an element changes by bombarding the nucleus of an atom w/ subatomic particles or another nucleus

Answer 12

Nuclear Transmutation

Question 13

Propels subatomic particles using electromagnetic fields and arranges them in a beam

Answer 13

Particle Accelerator

Question 14

Used to bombard nuclei w/ high energy particles

Answer 14

Particle Accelerator

Question 15

Circular particle accelerator

Answer 15

Cyclotron

Question 16

Largest particle accelerator currently active

Answer 16

Large Hadron Particle Accelerator

Question 17

What is the circumference of the Large Hadron Particle Accelerator?

Answer 17

27 km

Question 18

Discovered that atoms contain a dense core at their center (nucleus)

Answer 18

Ernest Rutherford

Question 19

First person to suggest the possibility of converting one element into another (1989)

Answer 19

Ernest Rutherford

Question 20

Was able to produce an oxygen-17 particle isotope by bombarding nitrogen with an alpha particle

Answer 20

Nuclear Transmutation

Question 21

Symbol for proton

Answer 21

11p or 11H

Question 22

Symbol for neutron

Answer 22

10n

Question 23

Electron or beta particle

Answer 23

0-1e or 0-1 β

Question 24

Positron symbol

Answer 24

0+1e or 0+1β

Question 25

Rules when writing and balancing nuclear equations

Answer 25

1. **Mass number** of elements are placed on element’s **superscript** and **atomic number** is placed at **subscript** 2. Like chemical equations, the **colliding particles** are **separated by a plus sign** and **products** are separated by a single headed arrow. 3. The **sum of the mass number of the reactants** equate the **mass number of the products** 4. The **sum of the atomic numbers of the reactants** equals the **mass numbers of the products** 5. When **abbreviating nuclear reactions**, the following format is followed: **Target Species (Bombarding Particle, Emitted Particle) Residual Nucleus**

Question 26

Symbol of Alpha particle

Answer 26

42a or 42He