Chemistry 1

All in the Numbers

100

74,863,000 In scientific notation I am written as this.

7.4863x10⁷

200

0.00005903 The number of significant figures in my number is?

4

300

27800.  The number of significant figures in my number is?

5

400

460 The number of significant figures in my number is?

2

500

Avogadro's number is the number of atoms or molecules in one mole of a substance. What is my numeric value?

6.022 x 10²³

Periodic Table

100

My group consists of 1+ ions.

IA

200

My group consists mainly of 2+ ions.

IIA

300

My group consists mainly of 2- ions.

VIA

400

This group is called the chalcogens?

VIA

500

This group is called the halogens?

VIIA

More Periodic Table

100

Lithium is considered one of the _________?

metals

200

Ge is an example of what group?

metalloids

300

Elements that are in the same column are said to be in the same _______________?

group

400

The transition metals are what group on the periodic table?

Group B

500

Elements that are in the same horizontal row are said to be in the same ___________?

period

People

100

I developed the electron cloud model?

Schrodinger

200

I proved light is BOTH a particle and a wave?

Max Planck

300

I thought electrons move in orbits/

Rutherford

400

I arranged all known elements into a table according to their atomic weights and grouped them together based on similarities.

Mendeleev

500

I created the Plum Pudding model showing the negative electrons are raisin-like particles that are surrounded by a positively charged 'pudding'.

JJ Thomson

Quantum Numbers

100

I am the number that is any of the 4 numbers that tells the chemist the position and energy of an electron in an atom.

Quantum number

200

I tell the chemist whether the electron is turning around the atom in a clockwise or counterclockwise direction.

Spin quantum number

300

I tell the chemist what the main energy level is of the electron.

principle quantum number

400

I tell the chemist the smaller, secondary levels of the electrons in each main energy level.

subshell quantum number

500

I tell the chemist what the electron's orientation is in space.

Orbital quantum number

Bond, James Bond

100

I am a type of bond where both atoms share the electron pair equally.

nonpolar covalent

200

A bond that involves the transfer of electrons, where the positively charged ions are electrically attracted to the negatively charged ion.

ionic bond

300

I am a molecular bond where both atoms share the electron unequally, the atom with the stronger electronegativity will tend to pull the electron pair closer to its nucleus causing the electron cloud to be 'lopsided'. 

 polar covalent bond

400

I am a bond where each atom shares electrons with ALL surrounding atoms; the electrons are what is called delocalized.

Metallic bond

500

The type of bond aluminum foil has is _________.

metallic bond

Crystals and Forces

100

I am the type of crystal arrangement where each atom has 6 identical neighbors?

simple cubic

200

I am the type of crystal arrangement where each atom has 12 identical neighbors.

face centered cubic

300

I am the most efficient crystal arrangement allowing the atoms to be packed together tightly as possible and minimizes wasted space.

close-packing

400

I am the strongest force that exists between molecules.

hydrogen bonds

500

I am the weakest force that exists between molecules.

London forces

What's my name

100

My name FeCl₃  in words.

Iron (III) Chloride

200

My name N₂F₄  in words is ______.

dinitrogen difluoride

300

 Dinitrogen pentoxide - My formula is _________.

N₂O₅

400

Lead (II) Sulfate, my formula is _______.

PbSO₄

500

Potassium, My Lewis dot structure is _________

K.