Chapter 15 Physical Science

Which one of the following is not a physical property of matter and instead is a chemical property?

• Melts at 650^oC

• Density of 1.0 g/mL

• forms molecules with two oxygen atoms

• Turns to ice at 32^oF

Tags

NGSS.MS-PS1-5

Groups of the periodic table correspond to elements with....

• the same color

• the same atomic number

• similar chemical properties

• similar numbers of neutrons

What atom is this?

• Carbon
• Magnesium

• Oxygen
• Nitrogen

Tags

NGSS.MS-PS1-1

Which of the following elements would have similar chemical properties to oxygen?

• Polonium

• Carbon

• Barium

• Neon

The atomic mass unit (amu) is:

• the mass of a single atom

• one millionth of a gram

• approximately the mass of a proton

• approximately the mass of an electron

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NGSS.HS-PS1-7

Which element has atomic number 17?

• Oxygen

• Neon

• Chlorine

• Fluorine

The outermost electrons of of the element vanadium (atomic number 23) are in which energy level of the atom?

• 1

• 2

• 3

• 4

The elements fluorine, chlorine and bromine are in which group of the periodic table?

• alkali metals

• oxygen-like elements

• halogens

• noble gases

Only two elements are liquid at room temperature, one is....

• Oxygen

• Magnesium

• Mercury

• Calcium

Tags

NGSS.MS-PS1-4

Which of the following is NOT true about the noble gases.

• They have completely filled energy levels.

• They have weak intermolecular forces.

• They do not bond with other elements in nature.

• They have boiling points above room temperature.

Tags

NGSS.HS-PS1-2