Atoms and Newton's Laws

Atoms and Subatomic Particles

1

What is a nucleus of an atom and what are components? 

Consist of electrically positive protons and electrically neutral neutrons.

2

What's the maximum number of electrons can fit into the second energy level?

8 electrons 

3

For an atom with an atomic mass of 23 and 11 protons, what Is the number of neutrons? 

12 neutrons 

4

Here is an element, what are these numbers and letters (4 components)? 

The number in left corner is atomic number, letter is a symbol, name is an element, and number in the bottom is atomic mass 

Bonds&Reactions

1

What is an ionic bond? 

An electrical attraction between 2 oppositely charged atoms or groups of atoms called ions

2

Type of bond that forms between hydrogen in one molecule and a more electronegative atom in another 

Hydrogen Bond 

3

What is the simplest type of chemical reaction which involves combining two elements to form a compound? 

Synthesis reaction 

4

What is the chemical equation that provides your body with energy? 

 C6H12O6 + 6 O2 → CO2 + H2O 

Glucose and oxygen react to form carbon dioxide and water

Properties of Water & solutions

1

Property of what which allows it to move against gravity in plant systems 

Cohesion/capillary action 

2

Water's ability to dissolve many substances comes from which property? 

Polarity 

3

Between which pH do most cellular processes occur? 

pH 6.5 - 7.5

4

What is a colloid? What are examples? 

A heterogeneous mixture in which the particles do not settle. Examples are smoke, nutter, milk, paint, ink, blood. 

Forces & Motion

1

What is force? 

A force is an action that changes or maintains the motion of a body or object.

2

This Newton's Law explains why a ball keeps rolling until friction slows it down 

Law of Inertia 

3

What is Newton's Third Law? 

Every action has an equal and opposite reaction 

4

According to Newton's Second Law, if a force of 30 N accelerates a 10-kg object, this is the resulting acceleration. 

2 m/s²