Expert Chemistry Tutoring

MS1:

- The smallest particle of an element (1)

- Contains a nucleus with protons and neutrons (1)

MS2:

- Potassium has fewer electron shells than calcium (1)

- Valency electrons are further from the nucleus (1)

- Easier for potassium atoms to lose valency electrons (1)

MS3:

- Correct identification of atoms: Mg = 24, O = 16 × 1 (1)

- Final answer: 24 + 16 = 40 (1)

MS4:

- Covalent bonding (1)

- Ionic bonding (1)

MS5:

- Graphite is made of layers of carbon atoms (1)

- Electrons can move freely between layers, allowing electricity to be conducted (1)

MS6:

- Correct balancing of both sides of equation (1)

MS7:

- Two or more atoms chemically bonded together (1)

- Can be the same or different elements (1)

MS8:

- Sodium ions (Na+) and chlorine ions (Cl-) form a giant ionic lattice structure (1)

- Ions are arranged in a regular repeating pattern (1)

- Strong electrostatic forces hold the oppositely charged ions together (1)

MS9:

- Proton (1)

- Electron (1)

- Neutron (1)

MS10:

- In diamond, carbon atoms are arranged in a giant covalent structure (1)

- Carbon-carbon bonds are very strong (1)

- Large amount of energy needed to break bonds (1)