Periodic table stuff

Which subatomic particles are responsible for atomic mass?

• Electrons

• Protons

• Neutrons

• Positrons

Which subatomic particles are responsible for the charge of an atom?

• Electrons

• Neutrons

• Nucleus

• Protons

Which of the follow elements are in the Alkali metals?

• Mg

• Ca

• K

• Li

• Fr

Which of the following elements have 5 valence electrons?

• C

• N

• O

• Sb

• Pb

Which element's electron configuration would end in 3d⁹?

• Ag

• Cu

• Au

• Rg

What is the section of the periodic table where elements have electrons in the d orbitals called?

• Transition metals

• Translation metals

• Transistor metals

• Translator metals

Which of the following elements has 8 valence electrons?

• He

• Ne

• Ar

• F

• Cl

Which of the following atoms could be represented by the orbital diagram above?

• P^3-

• O^2-

• Cl^1-

• K¹⁺

• Al³⁺

Which of the following could be the electron configuration for an ion of Oxygen?

• 1s²2s²2p⁶

• 1s¹2s²2p⁶

• 1s²2s²2p⁴

• 1s²2s²2p⁵

Which of the following has the smallest atomic radius?

• Cl

• F

• O

• Br

• Ar