Matter Unit Quiz

Which of the following best describes the arrangement of particles in a gas?

• Tightly packed in a fixed position

• Close together but able to move past each other

• Far apart and moving freely

• Arranged in a regular pattern

Which of the following options best describes the electron?

• They are located in the nucleus

• They are located in the electron shells.

• They have positive charge.

• The number of neutrons in an atom

Tags

NGSS.MS-PS2-3

Tags

NGSS.MS-PS1-4

How many electron shells does Selenium (Se) have?

• 3

• 4

• 5

• 6

How is the atomic number of an element determined, and why is it significant?

• The atomic number is the number of protons in an atom, which determines the element's identity.

• The atomic number is the number of neutrons in an atom, which determines the element's identity.

• The atomic number is the number of electrons in an atom, which determines the element's identity.

• The atomic number is the sum of protons and neutrons in an atom, which determines the element's identity.

What is the smallest particle that makes up matter?

• a cell

• an element

• an atom

• a proton

Tags

NGSS.MS-PS1-1

How many protons does Ruthenium have?

• 101

• 5

• 44

• 40

Tags

NGSS.MS-PS1-1

An atom has an atomic number of 40 and an atomic mass of 94.68, how many neutrons does the atom have?

• 54

• 55

• 56

• 57

how many neutrons does Zinc have? (think about the formula and do the math)

• 33

• 34

• 35

• 36

How many electrons does Vanadium have?

• 5

• 23

• 50

• 50.942

Tags

NGSS.MS-PS1-1