Introduction to Atoms

In the below picture, how many valence electrons are there?

When is your next science test going to be?

Who proposed the plum-pudding model?

How many electrons does this particular element have?

a unit of mass that describes the mass of an atom or molecule

subatomic particle that has a positive charge

A column of elements is called a group, this is how you can decipher the number of valence electrons.

region where electrons are likely to be found

On the Periodic Table, I am able to distinguish if the element is a metal/non-metal

We call electrons in the outermost shell valence electrons.

To have a neutral charge, the atom must have one more proton than electron.

Calcium is in the 4th row on the periodic table. This means it has 4 electrons in the outermost shell.

Which of these movies was not made by Pixar? 

negatively charged particle discovered by Thomson

What did Democritus, Dalton, Thomson, Rutherford and Bohr all have in common?

An atom of gold with an atomic number of 79 and an atomic mass number of 197, would have how many protons?  

What is the name of Anna & Elsa's kingdom in Frozen?

On a piece of paper, draw the element Phosphorus. The atomic number is 15. How many valence electrons will it have?

Atomic Mass is the number of protons in the nucleus of an atom.

In Thomson's "plum-pudding" model of the atom the plums represent

particle that cannot be cut

What grade in Cologne Academy is looked to be the "mentors" of the school?

What is the smallest particle into which an element can be divided and still be the same?

How many electrons can "park" in the first shell?

Which of the following has the least mass?

Look at the picture below. How many valence electrons are there?

the sum of protons and neutrons in an atom

An atom's __ is equal to the weighted average of the masses.

Who is known as the "Father of Atomic Theory"?

This scientists is known for coming up with the name "atom"

the number of protons in the nucleus of an atom

central region of the atom

In the atom Magnesium, the atomic number is 12 while the atomic mass is 24. What is the number of neutrons?

How did Democritus describe atoms?

This scientist came up with the "Plum-Pudding" model

An atom's __ is equal to the number of protons in the nucleus.

On the Periodic Table, I am able to distinguish between gas/liquids/solids.

How can you EASILY figure out the number of valence electrons in a specific atom?

Who came up with the "Gold Foil" Experiment?

particle in the center of an atom that has no charge