[MT-MLS 104] Chapter 1 Part 1

When you hear the word “Organic,” what comes to your mind first?

It is anything that occupies space and has mass.

What is the smallest unit of matter?

Which of the following is not a subatomic particle?

• Proton

• Neutron

• Nucleous

• Electron

Which of the following is/are NOT true about proton?

• It is negatively charged

• It is found in the Nucleus

• It has similar mass to neutron

• Primarily contributes to the mass of the atom

Which of the following is/are true about electron?

• It is neutral

• It is found in the Nucleus

• It has a neglible mass

• Primarily contributes to the volume of the atom

Which of the following is/are true about electron?

• It is neutral

• It is found in the Nucleus

• It has a neglible mass

• Primarily contributes to the volume of the atom

Which of the following is best described as the atom with a mass of approximately 12 u and is neutrally charged?

• 6 protons and 6 electrons

• 3 protons, 3 neutrons, and 6 electrons

• 6 protons, 6 neutrons, and 6 electrons

• 12 neutrons and 12 electrons

What is the chemical symbol and atomic number of Silicon?

• S; 16

• Si; 14

• Sc; 21

• Sn; 50

What is the chemical symbol and atomic number of Potassium?

• Po; 84

• P; 15

• Pt; 78

• K; 19