Additional Mid-term M1 Science

What best describes an atom?

• A particle with a single negative charge.

• A particle with a single positive charge.

• The smallest particle that still represents a compound.

• The smallest particle that still represents an element.

What is structure X?

(a)  

• Nucleus
• Electron
• Quark
• Nucleon

Which best describes structure X?

(a)  

• Neutral charge, most of the atom's mass

• Positive charge, most of the atom's mass

• Negative charge, very small part of the atom's mass.

• No charge, very small part of the atom's mass.

What is true about the size of an atom?

• Its about the size of the period at the end of the sentence.

• It can only be seen using a scanning tunnel microscope.

• It's large enough to be seen with a normal microscope.

• It's too small to be seen with any type of microscope.

This is ​ (a)   atomic model.

• JJ Thomson's
• Bohr's
• Rutherford's
• Aristotle's

What particle is Rutherford credited with discovering?

• Neutron

• Electron

• Proton

• Quark

What is the atomic number of particle 2?​ (a)  

• 5
• 4
• 2
• 6

What is the atomic number of particle 4?​ ​ (a)  

• 6
• 4
• 2
• 5

What is the mass number of particle 3​ (a)   ?​ ​

• 11
• 16
• 13
• 5

Which particle is an ion?​ (a)  

• 1
• 2
• 3
• 4