Benchmark #2 Part 1M-OCR - Martino

Which model of the atom is shown below?

• Thomson

• Democritus

Which of the two are isotopes of one another? (What subatomic particle has to be the same for it to be the same element?)

• Atoms 1 & 2

• Atoms 1 & 3

• Atoms 1 & 4

Which letter shows the atomic mass?

• Letter C

• Letter D

Which type of nuclear decay releases the type of particle shown? (4He)

• alpha

• proton

The element, X, has an atomic mass of 58.93 amu. What is the identity of element X? Use the periodic table to help you.

• Co

• Fe

• Li

Beta particles have a ________ charge. (it is an electron) Hint: What is the charge of an Electron?

• -1
• +2

Wavelength and frequency are ________ related.

• inversely

• directly

Which element has the following electron configuration: 1s^2 2s^2 2p^6 3s^2 3p^3 (add up the numbers in the "air" and find whose atomic number it is) - Use the number after the ^, and add them up.

• C

• P

Vertical columns of the Periodic Table are called ________.

• groups

• periods

• rows

Metals are located on the ________ side of the Periodic Table.

• left

• right