Mark all statements that are true....numbers
1⎕ Molecular solids are not crystalline.
2⎕ Molecular solids can be held together by ALL TYPES of intermolecular forces
3⎕ Molecular solids are ONLY EVER composed of molecules.
4⎕ Ionic solids are NOT crystalline.
5⎕ Ionic bonds are the same as electrostatic
attraction between ions.
6⎕ Ionic bonds are stronger than any of the intermolecular forces.
7⎕ The melting points of ionic solids are lower than the melting points of most
molecular solids.
8⎕ Atomic solids are NOT crystalline.
9⎕ Some atomic solids do not include any
bonds.
10⎕ Some atomic solids are held together by extremely strong bonds.
11⎕ In some atomic solids, all atoms share
1.TRUE 10.TRUE.6.TRUE
To determine which statements are true, let's analyze each statement:
1. Molecular solids are not crystalline.
→ This statement is false. Molecular solids can be crystalline, meaning their atoms or molecules are arranged in a regularly repeating pattern.
2. Molecular solids can be held together by ALL TYPES of intermolecular forces.
→ This statement is false. Molecular solids are typically held together by weaker intermolecular forces such as London dispersion forces, dipole-dipole forces, or hydrogen bonding. They do not typically involve strong bonding forces like covalent or metallic bonding.
3. Molecular solids are ONLY EVER composed of molecules.
→ This statement is true. Molecular solids are composed of discrete molecules held together by intermolecular forces.
4. Ionic solids are NOT crystalline.
→ This statement is false. Ionic solids can be crystalline. In fact, many common salts and minerals are ionic solids with a regular crystal lattice structure.
5. Ionic bonds are the same as electrostatic attraction between ions.
→ This statement is true. Ionic bonds are formed due to the electrostatic attraction between positively and negatively charged ions.
6. Ionic bonds are stronger than any of the intermolecular forces.
→ This statement is true. Ionic bonds are typically stronger than intermolecular forces like London dispersion forces, dipole-dipole forces, or hydrogen bonding.
7. The melting points of ionic solids are lower than the melting points of most molecular solids.
→ This statement is false. Ionic solids generally have higher melting points compared to most molecular solids due to the stronger bonding involved.
8. Atomic solids are NOT crystalline.
→ This statement is false. Atomic solids can be crystalline. Examples include diamond (composed of carbon atoms) and metallic crystals (composed of metal atoms).
9. Some atomic solids do not include any bonds.
→ This statement is false. Atomic solids are held together by strong bonding forces, such as covalent bonds in diamond or metallic bonds in metal crystals.
10. Some atomic solids are held together by extremely strong bonds.
→ This statement is true. Atomic solids can have strong bonding forces, like covalent or metallic bonds.
11. In some atomic solids, all atoms share electrons.
→ The statement is cut off, and we can't determine its accuracy based on the given information.
Based on the explanations above, the two true statements are:
- Statement 3: Molecular solids are ONLY EVER composed of molecules.
- Statement 5: Ionic bonds are the same as electrostatic attraction between ions.