Which of these is true regarding covalent bonding:

An example of a covalent compound is methane

In order to form calcium chloride:

The calcium atom loses two electrons

Two chlorine atoms each receive one electron

One Ca2+ and two Cl- ions are formed

The ions are held together by electrostatic forces

Atoms gaining or losing electrons and becoming charged overall

Sharing of electrons between atoms

Atoms gaining or losing electrons and becoming neutral overall

Quiz

Peter Hoskins 10 Fragen

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1Chlorine occurs naturally as two isotopes.
Chlorine contains 75% chlorine–35 and 25% chlorine–37.
Calculate the Relative Atomic Mass of chlorine
1. A35
2. B36.2
3. C35.5
4. D36
2Which of these is true regarding covalent bonding:
1. ATakes place between non-metals
2. BInvolves sharing of electrons
3. CAn example of a covalent compound is methane
4. DAll of these answers
3This diagram shows:
1. AMetallic bonding
2. BIonic bonding
3. CCovalent bonding
4. DIsotropic bonding
4In order to form calcium chloride:
1. AThe calcium atom loses two electrons
2. BTwo chlorine atoms each receive one electron
3. COne Ca2+ and two Cl- ions are formed
4. DAll of these answers
5The magnesium ion is:
1. AMg2+
2. BMg+
3. CMg2-
4. DMg-
6In sodium chloride the following ions are formed:
1. ANa- Cl-
2. BNa- Cl+
3. CNa+ Cl-
4. DNa+ Cl+
7Which of these facts about solid sodium chloride is false:
1. AIt has a high melting point
2. BIt has a high boiling point
3. CIt conducts electricity
4. DThe ions are held together by electrostatic forces
8Ionic bonding involves:
1. ASharing of electrons between atoms
2. BAtoms gaining or losing electrons and becoming neutral overall
3. CAtoms gaining or losing electrons and becoming charged overall
4. DThe loss or gain of protons
9The formula for magnesium oxide is:
1. AMg2O
2. BMgO2
3. CMgO
4. DMg2O3
10Isotopes have:
1. AThe same number of protons
2. BThe same number of neutrons
3. CThe same mass number
4. DDifferent numbers of electrons