Atomic Structure
Electrons
Periodic Table 1
Periodic Table 2
Metals /Non-Metals/Gases
100
An atom is made up of these 3 parts
What are protons, neutrons, and electrons
100
Electrons located on the outermost shell are called...
What are valence electrons ?
100
These are vertical columns on the periodic
What are groups ?
100
Sodium (Na) has this many valence electrons
What is 1? Note: the group number tells you how many valence electron the elements in that group have
100

This is the only non-metal element on the left side of the periodic table

What is hydrogen ?

200

Electrons are found here

Energy levels (or electron shells)

200
The number of an atom's electrons are equal to the number of these particles found in the nucleus
What are protons ?
200
These are the horizontal rows on the periodic table
What are periods ?
200

Elements in period 1 can have up to _____ electrons in its valence shell.

2

200

This group is very unreactive and has a full valence shell( (8 valence electrons )

What are the Noble gases ?

300
These particles are located in the nucleus of the atom and have a positive charge
What are protons ?
300
Elements in the same group have the same number of these (* hint keep the category in mind )
What is the same number of valence electrons ?
300

Elements in period 3 have this many energy levels

3

300
These metals are so reactive that they are found only combined with other elements
What are Alkali metals ?
300

This is the most reactive metal

Francium (i'll also accept Cesium, Cs)

400

The total of protons and neutrons of an element will give you this

Atomic Mass (or mass number)

400

State the electron configuration of a Silicon atom.

Si:  2, 8, 4

400

Mendeleev arranged the periodic table using these two properties of the elements

Reactivity and mass

400
The elements next to the zigzag line (except for Al) are called..
What are metalloids ?
400

The atomic radius of metals _______ going up the group.

Decreases

500

An atom of Sodium (Na) and an atom of Sulfur (S) have this in common.

Same number of energy levels

500

State the electron configuration of the following cation: 

Mg2+

Mg2+ : 2, 8

500

Arrange these elements in order of reactivity (least to most):


Ba,  Mg,  Sr

Mg, Sr, Ba

500
This transitional metal is found in period 4 group 10
What is Nickel (Ni) ?
500

Describe the trend in both the atomic radius AND reactivity of halogens.

Atomic Radius: Increases going down the group

Reactivity: Gets more reactive going UP the group

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