SL Chem Topic 3.1 Periodicity

A group of very unreactive (inert) monatomic gases.

Atomic number (nuclear charge) is labeled in chemistry as the letter?

Group 17

Groups or columns are _____ and usually have ____ chemical and physical properties.

Group 2

Helium is considered part of the ______ block?

The following elements have properties of metals AND non-metals and are called metalloids (semi-metals):

How many valence electrons does Tellurium have? He is in group 16, period 5

What are core electrons?

Is Al (aluminum) a metal, metalloid or non-metal?

This is the Bohr model for the noble gas called helium. Does he look stable (happy) to you?

If periodicity is true, then _____ most likely have DIFFERENT physical and chemical properties.

How many valence electrons did that neutral bromine (Br) have? 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁵

What is a valence electron?

How many metalloids (semi-metals) do we have? Start with B and go diagonal. Notice who isn't.

Relatively stable metals with only moderate reactivity – useful for construction.

On the modern Periodic Table, the elements are arranged in order of increasing 

Rows or periods go _____________ and elements in the rows have ______ chemical and physical properties.

Main group elements are stable using the ______ rule

The most reactive group of non-metals. 

The period number tells you

Which of the following is a noble gas?

How many valence electrons do fluorine, chlorine, and bromine have?

Which 2 elements follow the DUET RULE and are full with 2 valence electrons?

Groups 3-12

repeating patterns of physical and chemical properties is called _____.

What are considered main group elements?

All of the atoms of the same element have the same

How many valence electrons does this element have? 1s2, 2s2, 2p6, 3s2, 3p5

Group 1

Where are the alkali metals located?

Mendeleev arranged elements by _____, then Moseley IMPROVED it by arranging them by _______

The MOST REACTIVE group of metals – react STRONGLY with cold water.

The number of neutrons in the nucleus can be calculated by 

What the fast way of figuring out how many valence electrons a MAIN GROUP element has?

The "LONG FORM" periodic table has not cut out the ______ and ______ (f block)

How many valence electrons does a neutral fluorine have?

Which block are the metals: iron (Fe), nickel, platinum, copper, silver, gold (Au), zinc, Hg(mercury) found?

This is the Bohr model for the non-metal called fluorine. Does he look stable (happy) to you?

Speaking of radioactive, uranium is used in nuclear power plants and atomic bombs. Which group is in located in?

_____ are elements with atomic numbers 89 to 103 (1st F block elements) and are all radioactive.

Elements of these groups on the periodic table are most resistant to forming compounds?

Which of the following is a transition metal?

Group 18

Reactive metals – but less reactive than group 1.

(elements 57 to 71) (second row in the F block) are also known as the rare earth metals.

Which of the following is a halogen?

How many valence electrons does this element have: {Ne} 3s2, 3p5

Where will a new element be placed on the periodic table if it has the properties of METALS?

Which of the following is a metalloid or semi-metal?

Even though other scientists grouped elements by physical/chemical properties, which scientist arranged them in a table

Where are the alkaline earth metals located?

Which neutral element has the following electron configuration: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁵