Unit 2 Review - Atom & Periodic Table

Which of the following in an element in the alkali metals?

Which element has the electron configuration of 1s²2s²2p⁶3s²3p¹

Energy and _____ increase together on the EM spectrum.

Which group are highly reactive non-metals with a 7 valence electrons?

What is the isotope name of an atom which has 5 protons, 5 electrons, and 6 neutrons?

Atomic Mass Unit is abbreviated how?

As you go down a group, the atomic size

Which electromagnetic wave has a lower energy?

If an element has an atomic number of 20, and a mass number of 25, how many neutrons?

Which element has the smallest ionic radius?

Element with the highest electronegativity is

Who fixed the periodic table & organized it by increasing atomic number?

Which electromagnetic wave has a higher frequency?

What is the noble gas configuration of Sr?

How does the reactivity change as you move down the alkali metals?

Which of the following elements is in the halogens group?

Ions have different number of...

Which scientist was discovered a dense nucleus that deflected the alpha particles in gold foil?

Which electromagnetic wave has a longer wavelength?

Who is the Father of the Periodic Table & organized it by increasing atomic mass?

Element with the highest ionization energy is

Which scientist was developed a planetary model that has 2 electrons on the lowest orbital?

Isotopes have different numbers of...

In a neutral atom, protons always equals _______

What is the mass number of an element that has 5 protons, 6 neutrons, and 7 electrons?

Mass number represents the number of _____ in the atom.

Which group is generally unreactive and has their physical state in common?

Smallest part of an element that retains its properties.

Which scientist was attributed to discovering the electron using the cathode ray tube?

Atomic number represents the number of _____ in the atom.