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Biblioteka

Chapter 7 Section 7.4 Worksheet

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Pitanje 1
1.

The bonding in both metals and ionic compounds is based on the attraction of particles with __________ charges.

Pitanje 2
2.

One challenge for researchers about 1900 was to find the best material for the filaments in light bulbs. The ?substance...had to be ___________ enough to be drawn into a narrow wire,

Pitanje 3
3.

A metallic bond is the attraction of a metallic _________________ for delocalized electrons.

Pitanje 4
4.

In general, metals have moderately high melting points and ____________________, as shown in Table 7.12.

Pitanje 5
5.

Metals are _______________, which means they can be hammered into sheets,

Pitanje 6
6.

and they are ____________, which means they can be drawn into wire.

Pitanje 7
7.

Which properties does Barium have?

Pitanje 8
8.

The bonds in an alkali metal are relatively ______ because alkali metals contribute only a single valence electron.

Pitanje 9
9.

Sodium is soft enough to cut with a __________ and melts at 97.8°C.

Pitanje 10
10.

An alloy is a mixture of elements that has _______________ properties.

Pitanje 11
11.

When silver, copper, ____________, or zinc is mixed with gold, the gold is harder and more resistant to wear.

Pitanje 12
12.

The French horn is made from ___________, an alloy of copper and zinc.

Pitanje 13
13.

Which elements are in cast iron:

Pitanje 14
14.

Which elements are in Alnico:

Pitanje 15
15.

Which elements are in pewter:

Pitanje 16
16.

Name the following ionic compound: SnF2

Pitanje 17
17.

Name the following ionic compound: Fe2O3

Pitanje 18
18.

Name the following ionic compound: ZnBr2

Pitanje 19
19.

Name the following ionic compound: PbO