Unit 2 Physical Science

Why are elements called the "building blocks of matter"?

• They stack up really nicely

• They make up all matter

• They make up most of the matter around us

• Because they work a lot like legos

When bonding occurs _________ is formed.

• a new substance with new properties

• the same substance is formed

• a different substance with the same properties

• protons in the nucleus

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is all matter made up of?

• Cells

• Atoms

• Nitrogen

• Carbon

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Which of the following is true about atoms?

• they can be bonded together

• cannot be bonded together

• can be broken down and still remain the same element

• they are really really big

Tags

NGSS.MS-PS1-1

What does the c stand for in the equation E=mc^2

• Energy

• Mass

• Constant

• Speed of light

The overall charge of the nucleus is ...

• positive

• negative

• neutral

• about $1.99

A Neutron has ...

• No electric charge

• a negative charge

• a positive charge

• about 120 v

Which part of the atomic model orbit the nucleus

• protons

• neutrons

• electrons

• oort cloud

How many protons can be found in the nucleus of a Krypton atom? ( look at the screen for the periodic table )

• 83

• 36

• 47

• 51

What is the atomic number of Polonium?

• 89

• 56

• 84

• 208