ChemWithCat

What makes up the majority of the mass of the atom?

• Photons surrounding the atom.

• Electrons in the nucleus.

• Quarks in the electron cloud.

• Protons and neutrons in the nucleus.

What is most responsible for the reactivity of an atom?

• The mass of the atom.

• The number of protons in the nucleus.

• The temperature of the environment.

• The number of electrons in the outermost shell (valence electrons).

Why does an atom want a full outer shell of valence electrons?

• To increase the number of protons in the nucleus.

• To attract more neutrons to the atom.

• An atom wants a full outer shell of valence electrons to achieve stability.

• To become a radioactive element.

Why is hydrogen (H) so reactive?

• Hydrogen is highly reactive due to its single electron, which it readily shares or loses to achieve stability.

• Hydrogen is a noble gas, which makes it non-reactive.

• Hydrogen has a full outer shell of electrons, making it stable.

• Hydrogen is inert and does not react with other elements.

Flourine needs one valence electron to complete it's outer shell. Which family would love to give just one electron to it?

• Alkali metals

• Alkaline earth metals

• Transition metals

• Noble gases

Is calcium more likely to give up 2 electrons or pick up 6 electrons?

• Calcium does not interact with electrons.

• Calcium is more likely to pick up 6 electrons.

• Calcium is more likely to gain 2 electrons.

• Calcium is more likely to give up 2 electrons.

How are the families similar according to their Bohr diagrams?

• The families have different numbers of protons in their Bohr diagrams.

• The families have the same atomic mass in their Bohr diagrams.

• The families have identical electron configurations in their Bohr diagrams.

• The families have the same number of valence electrons in their Bohr diagrams.