Atoms, Electron Structure & The Periodic Table Review

Ionization energy of an atom is the minimum energy required to remove an electron.

The first ionization energy, IE₁, generally ___ as we move left to right across a period.

answer choices

• Increases

• Decreases

• Stays the same

• No Trend

What is located in the nucleus of an atom?

• Protons

• Electrons

• Neutrons

• Cells

Is the periodic table mostly made up of _____?

• Metals

• Non-Metals

• Metalloids

Which of the following is a non-metal and is liquid at normal temperature and pressure?

• Mercury

• Chlorine

• Bromine

• Zinc

Which of the following is a Transition Metal?

• Potassium

• Manganese

• Berkelium

• Lead

Most of the mass of an atom comes from?

• Protons

• Neutrons

• Electrons

An atom is a/an ___ when it has a different number of electrons and protons

• Isotope

• Ion

• electron

• neutral

What atom is [Xe] 6s²4f¹⁴5d⁴

• Tantalum

• Tungsten

• Rhenium

• Osmium

What element is this?

• Selenium

• Germanium

• Strontium

• Nickel

How many valence electrons does group 15 have?

• 3

• 8

• 5

• 2