8th Grade Practice Midterm 1

How many neutrons does Boron have? ​

• 3
• 7
• 6
• 10

Tags

NGSS.MS-PS1-1

Every atom has a _________ charged nucleus.

• Negative
• Positive
• Neutural

Look at the tile above, how many neutrons are in oxygen?

• 15
• 2
• 8
• 16

Tags

NGSS.MS-PS1-1

The modern periodic table is organized in order of increasing

• increasing atomic number
• Atomic mass
• Counting the mass

What period is Iron in?

• period 4
• Period 1
• Period 3
• Period 5

The properties of an element and the way its __________ combine are determined mainly by the number and the arrangement of the particles in its atoms.

• Atoms
• Protons
• Electrons
• Numbers

Tags

NGSS.MS-PS1-1

Which subatomic particle is negatively charged?

• Neutron
• Proton
• Element
• Electrons

What is matter?

• Anything that has mass and takes up space
• The Periodic Table
• Life it self

Tags

NGSS.MS-PS1-5

Solutions are ___________ mixtures.

• Solid
• Homogenous
• Heterogeneous
• Gas

Which of these is an element?

• Salt (NaCl)
• Water (H20)
• Oxygen (O)
• Carbon Dioxide (CO2)