Element

Name

Symbol

Mass

Number

Atomic

Number

Number of

Protons

Number of

Neutrons

Number of

Electrons

Lithium

Carbon

Chlorine

Silver

Lead

Calcium

Tantalum

Radium

Samarium

Uranium

Americium

Lawrencium

The most active of all the chemical elements is a halogen known as?

Why can we move fast but can't feel it

The kinetic theory assumes that collisions of gas particles are perfectly elastic. What does this statement mean?

what is the process of a substance that changes from a solid directly to a gas without becoming a liquid

During a chemical reaction, the amount of energy - may increase or decrease depending on the type of reaction - increases as it is converted from one form to another - decreases as it is converted from one form to another - is constant as it is

What characteristic must be true of a good hypothesis

Which pair of atoms has the highest electronegativity difference? Na-F Ca-F H-F C-F F-F

How fast can a turbidite bed form? a matter of minutes a matter of seconds a matter of hours a matter of years

The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 100-gram sample of carbon-14 after 2 half-lives? 75 6.25 12.5 25

Which of the following describes the difference between nitrogen-14 and nitrogen-15? A. Nitrogen-14 has 14 electrons, 14 protons, and 14 neutrons; nitrogen-15 has 15 electrons, 15 protons, and 15 neutrons. B.