Nature of Particulate Matter

Which of the following is the correct definition of matter?

• any physical substance that occupies space and has mass

• two or more atoms joined together

• the amount of space taken up by an object in liters

• the tendency of an object to rise or float in a liquid or gas

Tags

NGSS.MS-PS1-4

_____ believed that all matter was made of four elements: fire, water, earth, and air.

• Democritus

• Aristotle

• Dalton

• Rutherford

Predicted answers to questions based on available evidence is known as a(n) ___.

• observation

• data

• method

• hypothesis

Substances that cannot be broken down into any other substances is called a(n) ___.

• compound

• solution

• element

• molecule

The identity of an element on the periodic table is determined by the number of _______.

• protons

• neutrons

• electrons

• ions

How many protons does Potassium (K) have?

• 39

• 19

• 20

• 39.10

Tags

NGSS.MS-PS1-1

What is the atomic mass of Calcium (Ca)?

• 40.08

• 20

The atomic number of an element increases from left to right across the periodic table.

• True

• False

Tags

NGSS.HS-PS1-1

What subatomic particle is positive and found in the nucleus?

• electron

• proton

• neutron

• quark

Every element has an unique number of _______________.

• protons

• neutrons

• electrons

• symbols