Separation of isotopes

Which species would get deflected by the greatest degree in the mass spectrometer?

• ¹²C⁺
• ¹³C⁺
• ¹³C²⁺
• ¹⁴C⁺

which atom has  4 neutrons?

• Li-6
• Li-7
• Li-8
• they have the same # of neutrons

In a correctly written symbol what would be located in the "A" position?

• number of neutrons
• atomic number
• number of electrons 
• mass number

How many isotopes of this element are shown in the mass spectrum?

• 98
• 7
• 100
• 95.9 g/mol

Which of the following statements regarding subatomic particles is incorrect?

• Protons are positively charged particles and neutrons have no charge.

• The relative mass of the proton, electron and neutron the same.

• In a neutral atom the number of protons equals the number of electrons.

• Isotopes of an element have the same number of protons but a different number of neutrons.

Which of the following separation techniques is dependent on difference in volatility?

• Distillation

• Crystallization

• Magnetic separation

• Fractional crystallization

Which of the following statements regarding subatomic particles is incorrect?

• Protons are positively charged particles and neutrons have no charge.

• The relative mass of the proton, electron and neutron the same.

• In a neutral atom the number of protons equals the number of electrons.

• Isotopes of an element have the same number of protons but a different number of neutrons.

What is the average atomic mass for this element?

• 10 amu
• 10.8 amu
• 19.9 amu
• 11 amu

A sample of pure chlorine gas is analyzed in the MS. Which of the following is a correct interpretation?

• Chlorine has an isotope with a mass of 70 amu
• Chlorine has three known isotopes
• Chlorine is diatomic
• Chlorine is highly reactive

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70