Science SA 1 EG 10-11 Reviewer

Which subatomic particle(s) is/are found inside the Nucleus?

• Protons and Electrons

• Protons and Neutrons

• Protons only

• Electrons only

Complete the analogy: Mass Number: Neutrons; Atomic Number: _______

• Electrons

• Protons

• Neutrons

• Isotope

Which subatomic particle determines the name of the element or atom?

• Protons

• Electrons

• Neutrons

• Isotopes

The given element is Argon (Ar). How many number of protons does it have?

• 40

• 18

• 22

• 58

Which is the mass number or atomic mass of the given element?

• 40

• 18

• 22

• 58

How many number of neutrons does the element have?

• 40

• 18

• 22

• 58

Boron (B) has the following numbers:

Atomic no. or No. of Protons = 5

Mass number = 11

If the net charge is -2, what is the number of electrons?

• 6

• 7

• 8

• 0

Which statement describes an Isotope?

• Two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nucleus.

• Two or more forms of the same element that contain equal numbers of electrons but different numbers of protons in their nucleus

• Two or more forms of the same element with the same mass number.

• Two or more forms of the same element with different atomic number.

After a series of experiments, Element X has the following numbers: Protons= 38 and Electrons= 36. Which statement is accurate?

• Element X is now a negative ion

• Element X is now a positive ion

• Element X is now a neutral ion

• None of the choices are correct

The given atomic model is also known as:

• Planetary Model

• Plum pudding model

• Nuclear model

• Bohr Model