Atomic Structure and Metals/Nonmetals/Metalloids

Atomic Structure

100

What three subatomic particles are found inside an atom?

Protons, Neutrons, and Electrons

200

The center of the atom is called the _________.

Nucleus

300

Where are electrons found inside the atom?

Outside the nucleus; Energy Levels

400

______ and ______ are found in the center of the atom

Protons and Neutrons

500

Where is most of the mass found inside of the atom?

The Nucleus

Isotopes

100

Define Isotope

Different versions of the same element

200

What makes isotopes of the same element slightly different from one another?

# of neutrons and mass #

300

In the name "Carbon-14," what does that "14" stand for?

The mass # for that isotope

400

Write the isotope symbol for Magnesium-26

²⁶₁₂ Mg    OR     Mg²⁶₁₂

500

How many protons, neutrons, and electrons are found in Sodium-24?

Protons- 11, Neutrons- 13, Electrons- 11

Periodic Table

100

What does the atomic number tell you about an element?

# of protons

and technically, the # of electrons

200

How many protons does Carbon have?

6 protons

300

What is the element symbol for Lead?

Pb

400

How do you solve for neutrons?

Mass - Protons

OR

Mass- Atomic #

500

What is the difference between atomic mass and mass number?

Atomic Mass= AVERAGE weight of an element; written as a decimal on the P.Table

Mass Number= EXACT weight of an element; sum of protons and neutrons

Metals/NM/Metalloids

100

Which group of elements are found near the zig-zag line on the Periodic table?

Metalloids

200

Which group of elements takes up almost 70% of the periodic table?

Metals

300

What does malleable mean? Which element(s) have this property?

Hammered into thin sheets

Metals (and technically metalloids too)

400

List 3 properties of a nonmetal

Not malleable/ductile, brittle, dull (lack luster), low melting points, poor conductors of heat/electricity, Not magnetic, Not reactive with acid

500

You are observing an unknown element that has a high melting point, is lusterous but brittle, can conduct some electricity, and is not reactive with acid. What kid of element could it be?

Metalloid (show properties of both metal and nonmetal)

Surprise Me!

100

Which particle determine's the elements identity?

Protons

200

Which element on the Periodic table has 50 protons?

Tin (Sn)

300

Rank the 3 main groups of elements from poorest to greatest conductors of heat/electricity

Nonmetals --> Metalloids --> Metals

400

Element A has 17 protons, 17 electrons, and 18 neutrons. Element B has 17 protons, 17 electrons, and 20 neutrons. Are these isotopes or different elements? Explain.

They are isotopes because they have the same # of protons and a different # of neutrons.

500

What was the name of the scientist who made the first periodic table?

Dmitri Mendeleev