Lecture #2 Chapter#2

Question 1

What is organic matter?

Answer 1

Matter that contains carbon

Question 2

What are elements?

Answer 2

The simplest examples of matter with specific chemical properties

Collection of atoms of the same type

Question 3

How can a compound occur? (Two ways)

Answer 3

Either in a pure form or as members of a chemical combination

Question 4

What are basic elements

Answer 4

CHNOPS

Carbon
Hydrogen
Nitrogen
Oxygen
Phosphorus
Sulfur

Question 5

What are trace elements?

Answer 5

Elements the body requires in small amounts

Question 6

What are ultra trace elements?

Answer 6

Elements that are toxic in large amounts put vital in small amounts such as arsenic

Question 7

What is an atom?

Answer 7

The smallest unit of an element has the chemical properties of an element

Question 8

How do atoms vary?

Answer 8

Size, weight, and the way they interact with other atoms

Question 9

What do atoms consist of?

Answer 9

Sub atomic particles; Which include electrons, protons, neutrons

Question 10

What is an electron?

Answer 10

A negatively charged subatomic particle that occupies orbitals around the atomic nucleus

Question 11

What is a charge?

Answer 11

The electrical properties of some subatomic particles. With opposite charges attract and like charges repelling

Question 12

What is the nucleus of an atom?

Answer 12

The core of an atom comprised of protons and neutrons

Question 13

What is a proton?

Answer 13

A positively charged subatomic particles found in the nucleus of all Atoms

Question 14

What is a neutron?

Answer 14

And unchcharged subatomic particle found in the atomic nucleus

Question 15

What is the atomic number?

Answer 15

The number of protons in the nucleus

Question 16

What is the atomic number do?

Answer 16

It determines the element

Question 17

What is another name for atomic weight?

Answer 17

Mass number

Question 18

What is the atomic weight or mass number?

Answer 18

The total number of Proton neutrons in the nucleus oven elements Atoms

Question 19

How do you find the number of protons in an element?

Answer 19

By looking at the atomic number

Question 20

What is a molecule?

Answer 20

The combination of two or more atoms to form a distinctive type of particle

Question 21

What is the difference between a molecule and a compound?

Answer 21

All compounds are molecules but not all molecules are compounds

Question 22

What is the molecular formula?

Answer 22

The short hand used to depict the numbers and types of atoms in a molecule

Question 23

What are bonds?

Answer 23

Atoms combine with other atoms to form links

Question 24

What is the shell model?

Answer 24

Model of electron distribution In an atom

Question 25

How do atoms with vacancies in their outer shells interact with other atoms?

Answer 25

They will rid themselves of the vacancies by gaining, losing, or sharing electrons with other atoms

Question 26

What are noble gases?

Answer 26

Any of the gaseous elements with a full outer shell of electrons or outer energy level

Question 27

What is the octet rule?

Answer 27

When the outer shell is full and unreactive

Question 28

What are valence electrons?

Answer 28

The electrons in the outermost/valance shell which determine the chemical behavior of an atom

Question 29

What is an ion?

Answer 29

When an atom carries a charge because it has an unequal number of protons and electrons

Question 30

What are cations?

Answer 30

Positively charged because they have lost an electron

Question 31

What are anions?

Answer 31

Negatively charged because they have gained an electron

Question 32

What is a chemical bond?

Answer 32

And attractive force that arise between two atoms when the electrons interact

Question 33

What is a covalent bond?

Answer 33

Two atoms sharing a pair of electrons

Question 34

What is an ionic bond?

Answer 34

A strong mutual attraction form between ions of opposite charges (cations and anions)