Atomic Structure and Periodic Table Trends Post Test

Atoms of elements in the same group of the periodic table share the same....

• Number of energy levels

• number of valence electrons

• atomic numbers

• atomic masses

What is an atom's nucleus made of?

• protons and electrons

• protons only

• protons and neutrons

• neutrons only

How many electrons will a neutral atom of carbon have if its nucleus has 6 protons and 8 neutrons?

• 2

• 6

• 8

• 14

An element with 5 protons, and 8 electrons has an atomic number of

• 5

• 6

• 8

• 11

AN element with 5 protons, 6 neutrons has a mass number of...

• 5

• 6

• 8

• 11

What is the number of valence electrons in an atom of Sodium (Na)?

• 1

• 2

• 8

• 11

Which particles determine the atomic number of an element?

• neutrons only

• neutrons and protons

• protons only

• protons and electrons

Which of the following is a transition metal?

• calcium

• nickle

• aluminum

• tellurium

An atom is neutral because....

• the number of protons and neutrons are equal

• the number of electrons and protons are equal

what element has 2 energy levels and 6 valence electrons

• sodium

• magnesium

• carbon

• oxygen