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CHM 1040 Lecture Notes - Lecture 4: Buckminsterfullerene, Noble Metal, Fluorine

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17 Sep 2016

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Wayne State University

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Document Summary

88 of them are found naturally in nature. The first letter is capitalized and the second one is lower case. Law of constant composition: a given compound contains the same proportions (by mass) of the elements. Atoms are never created nor destroyed (not necessarily true) Elements are made of atoms (a nucleus, subatomic particles- electrons, protons, neutrons) All atoms of a given element are identical (not necessarily true because we have discovered isotopes) Two elements can come together to form compounds. Chemical formula: atoms are indicated by the element symbols and the number of each type of atom is indicated by a subscript (to the right and below) Rutherford and chadwick created the current model of the atom. A dense nucleus consisting of protons (+) and neutrons (no charge) Electrons (-) in the electron cloud outside of the nucleus; 2000 times smaller than protons and neutrons. The chemistry of an atom arises from its electrons.

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Related Questions

Predict the charge that an aluminum ion would have.

Terms in this set (26)

example of the law of multiple proportions

Two different compounds formed from carbon and oxygen have the following mass ratios:

1.33 g O: 1 g C and 2.66 g O: 1 g C.

2) Which of the following statements is FALSE according to Dalton's Atomic Theory?

A) Atoms combine in simple whole number ratios to form compounds.

B) All atoms of chlorine have identical properties that distinguish them from other elements.

C) One carbon atom will combine with one oxygen atom to form a molecule of carbon monoxide.

D) Atoms of sodium do not change into another element during chemical reaction with chlorine.

E) An atom of nitrogen can be broken down into smaller particles that will still have the unique properties of nitrogen.

The mass number is equal to

the sum of the number of protons and neutrons

a subatomic particle is

A neutral atom contains the same number of protons and electrons

true statement about isotopes

Some elements have 3 or more naturally occurring isotopes

Identify a cation

An atom that has lost an electron

What species is represented by the following information?

p+ = 12 n° = 14 e- = 10

What species is represented by the following information?

p+ = 47 n° = 62 e- = 46

What species is represented by the following information?

p+ = 17 n° = 18 e- = 18

Predict the charge that an aluminum ion would have

Predict the charge that a calcium ion would have

Predict the charge that an ion formed from sulfur would have