Chapter 9 and 10 - Science Test

Question 1

What is an Atom

Answer 1

The smallest unit of an element that retains the properties of the element.

Question 2

Subatomic

Answer 2

Anything smaller then an atom

Question 3

Proton

Answer 3

A small particle that is positively charged found in the nucleus of an atom.

Question 4

Electrons

Answer 4

A tiny negatively charged particle that moves around the outside of the nucleus.

Question 5

Neutrons

Answer 5

A small particle found in the nucleus that has no charge.

Question 6

Nucleus

Answer 6

The central core of an atom that contains both protons and neutrons.

Question 7

Atomic Number

Answer 7

• Every atom of an element has the same number of protons and electrons( The number in the top corner)

Question 8

How to calculate the number of Neutrons

Answer 8

Atomic weight (rounded ) -Atomic Number

Question 9

Atomic weight

Answer 9

This is a weighted average so it is not equal to the
mathematical average of the isotopes.

Question 10

Periodic Table

Answer 10

A table that holds all the elements.

Question 11

Periods

Answer 11

Horizontal rows of the periodic table.

Question 12

Groups

Answer 12

The vertical columns on the table.

Question 13

Chemical Symbol

Answer 13

Just below the atomic number is one, two, or three letters depending
on the element.
These stand for the particular element and are internationally
accepted.

Question 14

Fusion

Answer 14

Fusion is the process through which new elements are created.

Question 15

Reactivity

Answer 15

The ease and speed with which an element reacts with or
combines with other elements or compounds.

Question 16

Metals

Answer 16

??? IDK

Question 17

Nonmetals

Answer 17

???IDK