Intro to Biology Pt 2 Flashcards Preview

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Flashcards in Intro to Biology Pt 2 Deck (26)
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0

What is the strongest, most stable bond?

Covalent bond

1

What is bonding?

Sharing relationship between electrons & neighboring elements

2

What are 3 types of chemical bonds?

1. Covalent
2. Ionic
3. Hydrogen

3

What is the weakest bond?

Hydrogen Bond

4

What is a covalent bond?

Strongest bond. most stable. electron sharing. mutually beneficial relationship (like marriage)

5

What is matter?

Anything that has mass & takes up space.

6

What is mass?

The physical composition of a particle

7

What is mass not?

Mass is Not weight

8

What is weight?

Mass is = to Mass X Gravity

9

What are 4 states of matter?

1. Solid
2. Liquid
3. Gas
4. Plasma

10

How many states of matter are there?

4 (3 on earth)

11

Describe a solid

Rigid, low energy, defined shape & volume.

12

Describe a liquid

Fluid, moderate energy, defined volume, no shape.

13

Describe a gas

Disruptive, erratic, high energy, no defined volume or shape.

14

Describe plasma

Extremely high energy, observed in space in stars

15

What is sublimination?

When a solid is condensed directly to a gas skipping the liquid stage (dry ice)

16

What is energy?

Ability to do work (heat, light, wave manipulation)

17

What is potential energy?

Stored energy, potential to be used

18

What is kinetic energy?

Energy in use

19

What is an atom?

Smallest subunit of an element that maintains its physical properties

20

What is an element?

Molecules with distinct characteristics & identities.
Substance that can not be broken down chemically into another substance.

21

How many subatomic particles do atoms contain?

3
(Electrons, Protons, Neutrons)

22

Name 3 subatomic particles.

1. Electrons
2. Protons
3. Neutrons

23

Do protons have a Positive or Negative charge?

Positive (+)

24

Do Electrons have a positive or negative charge?

Negative (-)

25

Do Neutrons have a positive or negative charge?

Neutral = Neutrality