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Vladimir79 [104]

3 years ago

5

How are ionic bonds formed

1 answer:

kiruha [24]3 years ago

4 0

Ionic bonds are formed as one atom the metal gives up or transfers one of its valence electron to the other atom that would then be able to accept it. This other atom is a non metal. This process occurs because the atoms want to become more stable by each of them satisfying the octet rule. In which atoms would have a maximum of 8 valence electrons.

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Fireworks contain metals that are brightly colored when burned. They are less reactive than some other metals. Which metal is on

Varvara68 [4.7K]

The correct answer is C. Mg (Magnesium)

7 0

4 years ago

Read 2 more answers

Which element has the same number of valence electrons as oxygen. Neon sulfur fluorine nitrogen

Dovator [93]

Sulfur has the same amount, like all the other elements in group 16, has six valence electrons.

5 0

3 years ago

In nature, oxygen has three common isotopes. The atomic masses and relative abundances of these isotopes are given in the table

Vaselesa [24]

Answer: The average atomic mass of oxygen is 15.999 amu

Explanation:

Mass of isotope O-16 = 15.995 amu

% abundance of isotope O-16= 99.759 % = $\frac{99.759}{100}=0.99759$

Mass of isotope O-17 = 16.995 amu

% abundance of isotope O-17 = 0.037% = $\frac{0.037}{100}=0.00037$

Mass of isotope O-18 = 17.999 amu

% abundance of isotope O-18 = 0.204% = $\frac{0.204}{100}=0.00204$

Formula used for average atomic mass of an element :

$\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})$

$A=\sum[(15.995\times 0.99759)+(16.995\times 0.00037)+(17.999 \times 0.00204)]$

$A=15.999$

Thus the average atomic mass of oxygen is 15.999 amu

5 0

3 years ago

What is the total number of atoms in 3.0 molecules of propanone, CH3COCH3? (Avogadro’s constant = 6 x 1023 mol-1)

BigorU [14]

Answer:

1.81 x 10²⁴atoms

Explanation:

Given parameters:

Number of molecules = 3 moles

Unknown:

Number of atoms = ?

Solution:

To solve this problem, we are going to use the mole concept.

1 mole of any substance contains 6.02 x 10²³ atoms

So

3 mole of propanone will contain 3 x 6.02 x 10²³ atoms = 1.81 x 10²⁴atoms

4 0

3 years ago

Is Gold (Au) soluble?

Yakvenalex [24]

Answer:

yes

Explanation:

5 0

3 years ago