Chemistry Quiz #1

the Atomic Number of an element tells us the number of ________ in an atom of that element

• protons

• neutrons

• electrons

• isotopes

The Mass Number tells us how many _______ and _______ are in the most common isotope of an element.

• protons and electrons

• protons and neutrons

• neutrons and electrons

• protons and nucleus

The first letter of a Chemical Symbol is always _________.

• short for the Latin name of the element.

• capitalized and the second letter is always lowercase.

• someone's first initial.

• a consonant.

There are _____ Periods and _____ Groups on the Periodic Table of Elements.

• 9, 18

• 7, 12

• 9, 21

• 7, 18

The 3 main categories of elements on the Periodic Table are _______, _______, and _______.

• Natural, Man-made, and Alien.

• Metals, Metalloids, and Non-metals.

• Solids, Liquids, and Gases.

• Protons, Electrons, and Neutrons.

Mixtures are different from Elements and Compounds because...

• They can be separated physically.

• They can't be separated.

• They can be separated chemically.

• They consist of only one element.

In the periodic table, elements are arranged in order of increasing:

• Atomic mass

• Atomic number

• Number of neutrons

• Electronegativity

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

The center of an atom is called

a/an __________.

• atomic mass

• nucleus

• proton center

• energy shell

The current model of atomic structure is the __________ Model

• Bohr

• Rutherford

• Dalton

• Cloud