SPS1 - Periodic Table and Atomic Structure

Front

What are metals in the periodic table?

Back

Metals are elements that typically lose electrons to form positive ions. They are good conductors of heat and electricity and are usually malleable and ductile.

Front

What is the atomic number of an element?

Back

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

Front

What happens to an atom when it loses protons?

Back

When an atom loses protons, it changes into a different element, as the atomic number (which defines the element) decreases.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

Which group of elements typically forms negative ions?

Back

Nonmetals typically form negative ions by gaining electrons.

Front

What is the significance of an element's group in the periodic table?

Back

Elements in the same group have similar chemical properties and the same number of valence electrons.

Front

How do you determine the number of neutrons in an atom?

Back

The number of neutrons can be determined by subtracting the atomic number from the atomic mass (rounded to the nearest whole number).

Front

What is the difference between atomic mass and atomic weight?

Back

Atomic mass is the mass of a single atom, while atomic weight is the average mass of an element's isotopes, weighted by their natural abundance.

Front

What is an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net electrical charge.

Front

What is the role of metalloids in the periodic table?

Back

Metalloids have properties that are intermediate between metals and nonmetals and can exhibit both metallic and nonmetallic characteristics.