Quiz (4.1 & 4.2)

Which of the following is FALSE?

• All answer choices are correct.

• Xenon (Xe) contains 8 valence electrons.

• Tin (Sn) contains 2 valence electrons.

• Rubidium (Rb) contains 1 valence electrons.

Nitrogen (N) has ___ valence electrons.

• 5

• 2

• 3

• 4

Which of the following states that atoms tend to want 8 valence electrons in their outer shell in order to be stable?

• The octagon rule

• The rule of eights

• The octet rule

• The valence electron rule

A diagram that shows just the valence electrons of an atom is called a(n) _________.

(Select all that apply)

• Boher model

• Electron dot diagram

• Lewis dot diagram

• atomic model

The chemical properties of an element are determined by the number of ___.

• protons

• neutrons

• valence electrons

• isotopes

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons must an element have in order to be stable?

(Select all that apply!!)

• 2

• 4

• 6

• 8

Which element is the LEAST reactive?

• Oxygen (O)

• Xenon (Xe)

• Hydrogen (H)

• Sodium (Na)

Which element is the MOST reactive?

• Oxygen (O)

• Xenon (Xe)

• Hydrogen (H)

• Beryllium (Be)

Which element is considered MODERATELY reactive?

• Chlorine (Cl)

• Xenon (Xe)

• Hydrogen (H)

• Beryllium (Be)

Which element in Group 18 has only 2 valence electrons?

• Neon (Ne)

• Radon (Rn)

• Helium (He)

• Argon (Ar)