Chapter 3 (Elements and Atoms)

Front

A one or two letter abbreviation used to represent an element is called a(n) ________

Back

chemical symbol

Front

The number of electrons in phosphorus is: ________

Back

15

Front

Copper is a common metal. Which of the following properties does this metal most likely have? High conductivity, high malleability, and low luster; Low conductivity, low malleability, and low luster; High conductivity, high malleability, and high luster; Low conductivity, high malleability, and high luster.

Back

High conductivity, high malleability, and high luster

Front

What do metals generally have in common? Metals are good conductors of electricity and heat, malleable, ductile, and usually solid at room temperature; Metals are typically gases at room temperature; Metals are always brittle and break easily; Metals are poor conductors of electricity and heat.

Back

Metals are good conductors of electricity and heat, malleable, ductile, and usually solid at room temperature.

Front

The atomic NUMBER of boron is: ________

Back

5

Front

What is the smallest unit of an element that retains the properties of that element?

Back

Atom

Front

What is the center of an atom called?

Back

Nucleus

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral