Chemistry Final exam

How are elements on the periodic table arranged by?

• in alphabetic order
• simular physical & chemical properties
• their symbols
• Just simular physical properties

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Each column in the periodic table is called a _________ .

• period
• group
• cluster
• unit

Tags

NGSS.HS-PS1-1

Two elements chemically bonded form

• element
• compound
• mixture
• solutions

Tags

NGSS.MS-PS1-1

Periods on the periodic table are __________.

• Horizontal Rows
• Vertical Columns

The Atomic number is known as the _______

• Number of electrons in an atom

• Number of Protons in an atom

• Number of neutrons in an atom

• Number of Protons and electrons in an atom

What charge do protons have?

• Positive

• Negative

• Neutral

What is Atomic Mass Number ?

• Number of Protons

• Number of Neutrons

• Number of Protons and Neutrons

• Number of Protons and Electrons

Tags

NGSS.HS-PS1-7

The number of electrons in an atom is equal to the...

• Atomic number

• Protons

• Atomic Mass

• Neutrons

The formula used to calculate the number of neutrons is:

• Mass Number - Atomic Number

• Protons + Electrons

• Atomic Number - Mass Number

• Protons x2

Elements in the same group have : (2 correct answers)

• Similar chemical properties

• Similar names

• Same number of outer (valence) electrons)

• The same number of protons

Tags

NGSS.HS-PS1-1