CLASS VERIFICATION QUESTIONS ATOMIC STRUCTURE 2ND PART

The atomic mass is: _______________

• a. formed by neutrons and electrons.

• b. formed by electrons and protons.

• c. formed only by electrons.

• d. formed by neutrons and protons.

Where electrons are likely to be found as they travel around the nucleus:

• a. Nucleus.

• b. Within a proton.

• c. Electron cloud.

• d. Within a neutron.

What is the names for charged atoms?

• a. Ion.

• b. Alloy.

• c. Quarks.

• d. Isotope.

What is the element with Z=9. What is the mass number?

• a. The element is Carbon, its mass number is A=n+p so that, we say 10+10=20.

• b. The element is Potassium, its mass number is A=n+p so that we say it´s about 10+9=19.

• c. The element is Fluorine, its mass number is A=n+p so that it´s 10*9=90.

• d. The element is Fluorine, its mass number is A=n+p so that we say it´s about 10+9=19.

What are the atoms of the same elements but with a different number of electrons?

• a. Ion.

• b. Alloy.

• c. Quarks.

• d. Isotope.

The following atom represents a(n)

• a. anion.

• b. cation.

• c. neutral atom.

• d. Democritus model.

The following atom represents a(n):

• a. anion.

• b. cation.

• c. neutral atom.

• d. Democritus model.

The atomic number is: _______________

• a. the number of protons (or electrons) in an atom is called the atomic number of that atom. It is denoted by letter Z.

• b. the number of neutrons or electrons in an atom is called the atomic number of that atom. It is denoted by letter Z.

• c. the number of protons or electrons in an atom is called the atomic number of that atom. It is denoted by letter N.

• d. the number of photons of electrons in an atom is called the atomic number of that atom. It is denoted by letter Z.

COMPLETE THE ANALOGY

Sun = nucleus, planets=: _______________

• a. neutrons.

• b. electrons.

• c. protons.

• d. photons.