8th grade physical science final

The periodic law states that the properties of elements are periodic function of their

• atomic mass
• atomic numbers
• number of protons
• electron configuration

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is a noble gas?

• Nitrogen (N)
• Oxygen (O)
• Carbon (C)
• Neon (Ne)

Which Family does Argon (Ar) belong to

• Metalloid
• Transition Metal
• Alkali Metal
• Noble Gas

Flourine (F) is in the halogen family, which two are also halogens?

• Chlorine (Cl) and Bromine (Br)

• Iodine (I) and Helium (He)

• Boron (B) and Carbon (C)

What is the atomic number of Helium (He)?

• 1

• 2

• 4

• 8

Which of the following elements is an alkali metal?

• Sodium (Na)

• Chlorine (Cl)

• Argon (Ar)

• Zinc (Zn)

What are the rows in the periodic table called?

• blocks
• categories
• periods

When a metal combines with a halogen, the kind of compound formed is called a ____

• oxide

• salt
• organic compound

If a metal can be hammered or rolled into thin sheets the metal is said to be

• volatile
• malleable
• transparent

The small heavy center of an atom is the nucleus and contains which two sub atomic particles?

• Electrons and Protons
• Neutrons and Electrons
• Protons and Photons
• Protons and Neutrons