Atoms
Elements
Matter and Energy
Periodic Table
Periodic Trends
100

This is the smallest particle with the same properties as an element

What is an atom

100
Made up of only one kind of atom
What is an element
100

This states that matter is neither created nor destroyed, only changed in form

What is the Law of Conservation of Matter

100
These are found on the right side of the periodic table
What is metalloids and non metals
100

The number of valence electrons held by atoms in group 2

What is...

2?

200
This is an uncharged particle in the nucleus of the atom.
What is a neutron
200
These are on the periodic table
What is an element
200
Anything that has mass and takes up space
What is matter
200
This is the number of protons in the nucleus of each atom of an element
What is the atomic number
200

The number of valence electrons held by atoms in group 13

What is...

3?

300
These are atoms of the same element that have different numbers of neutrons.
What is an isotope
300

These are shiny, good conductors of heat and usually solid at room temperature

What is a metal

300

True or False- Hydrogen is matter

What is true

300
This is the sum of the an atom's protons and neutrons
What is mass number
300

The electron configuration of beryllium

What is...

1s2 2s2?

400
This is a positively charged particle in the nucleus of the atom
What is a proton
400

These are poor conductors of heat and electricity. They are often dull in appearance when solid

What is a non metal

400

True or False- light is matter

What is false

400
This is the weighted average of mass of an element
What is atomic mass
400

The element with the smallest atomic radius

What is...

helium?

500
This is a negatively charged subatomic particle
What is an electron
500
Elements that have characteristics of metals and non metals
What is a metalloid
500

The experiment that showed electrons are only emitted when an incident photon has sufficient energy

What is...

the photoelectric effect?

500

The name for the elements in group 18

What are...

noble gases?

500

The charge of ions formed by elements in group 16

What is...

-2?

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