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natita [175]
3 years ago
11

1. Are ions involved in metallic bonding? 2. How are the atoms arranged in a metal? Why?

Chemistry
1 answer:
Katen [24]3 years ago
7 0

Answer:

1 ans =The atoms that the electrons leave behind become positive ions, and the interaction between such ions and valence electrons gives rise to the cohesive or binding force that holds the metallic crystal together.

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5kg?

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Magnesium chloride is an example of an ionic compound, which is a compound composed of what?
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Magnesium chloride is an example of an ionic compound which is a compound composed of ?

Magnesium chloride is a compound which is composed of positive and negative ions. I hope this helps you :)



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Which answer best defines physical property
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Any property that is measurable, whose value describes a state of a physical system.
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Which orbitals from a pi bond?
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3 years ago
A sample taken from a layer of mica in a canyon has 2.10 grams of potassium-40. A test reveals it to be 2.6 billion years old. H
Setler79 [48]

Problem One

<em><u>Formula</u></em>

N(t) = No * (1/2)^[t/t_1/2]

<em><u>Givens</u></em>

N(t) = the current mass of the sample = 2.10 grams

No = The original mass of the sample = No [We're trying to find this].

t = time elapsed which is 2.6 billion years or 2.6 * 10^9 years.

t1/2 = the 1/2 life time which is 1.3 billion years of 1.3 *10^9

<em><u>Solution</u></em>

2.10 grams = No (1/2)^(2.6*10^9/1.3 * 10^9)

The 10^9s cancel and you are left with 2.6/1.3 = 2

2.10 grams = No (1/2)^2

2.10 grams = No (1/4)          Multiply both sides by 4

2.10 * 4 = No (1/4)*4

8.4 grams = No

which is how many grams you originally had.

Answer B.

Problem Two

_{1}^{2}\text{H} + _{1}^{2}\text{H} \longrightarrow _{z}^{y}\text{x}+_{0}^{1}\text{n}

Solve for y

2 + 2 = y + 1

4 = y + 1

y = 3

Solve for z

1 + 1 = z + 0

z = 2

The 2 tells you that it is the second member on the periodic table. That's Helium. So the answer looks like this.

_{2}^{3}\text{He}

The mass of the Helium is 3 and its number is two.

5 0
3 years ago
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