Physical Science, Periodic Table Review

What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!

• noble gases
• transition
• halogens
• borons

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.HS-PS1-1

Which is an alkali metal?

• Magnesium
• Iron
• Sodium
• Europium

Tags

NGSS.HS-PS1-1

Which term represents the attraction one atom has for the electrons in a bond with another atom?

• electronegativity
• electrical conductivity
• first ionization energy
• mechanical energy

A solid element that is malleable, a good conductor of electricity, and reacts with oxygen is classified as:

• metal
• metalloid
• noble gas
• non metal

Which elements have the most similar chemical properties?

• Si, As, Te
• N₂, O₂, F₂
• Mg, Sr, Ba
• Ca, Cs, Cu

Explain in terms of atomic structure why elements in group 18 are nonreactive.

• They all have 8 valence electrons.
• They are noble gases.
• They all have filled valence shells.
• They have an oxidation number of 0.

An atom in the ground state has two electrons in its first shell and six electrons in its second shell. What is the total number of protons in the nucleus of this element?

• 5
• 2
• 7
• 8

What is the net charge of an ion that has 8 protons, 9 neutrons, and 10 electrons?

• +1
• +2
• -1
• -2

Which of these is NOT a halogen?

• fluorine
• bromine
• carbon
•  astatine