element builder

Question 1

the basic unit of matter

Answer 1

atom

Question 2

number of protons in the nucleus of an atom

Answer 2

atomic number

Question 3

a negatively charged particle that moves around the nucleus

Answer 3

electron

Question 4

a diagram that shows the element symbol surrounded by dots representing valence electrons

Answer 4

electron dot diagram

Question 5

a pure substance that cannot be broken down into simpler substances by ordinary chemical means

Answer 5

element

Question 6

a particular region where electrons can orbit a nucleus

Answer 6

energy level

Question 7

an atom or molecule that has an electrical charge because ut has gained or lost electrons

Answer 7

Ion

Question 8

one of several forms of the same elements

Answer 8

isotope

Question 9

the number of protons plus nuetrons in the nucleus of an atom

Answer 9

mass number

Question 10

a particle with no charge located in the nucleus of an atom

Answer 10

nuetron

Question 11

the posivley charged, dense center of an atom

Answer 11

nucleus

Question 12

a chart that organizes the chemical elements based on their properties

Answer 12

periodic table

Question 13

a postivley charged particle located in the nucleus of an atom

Answer 13

proton

Question 14

capable of releasing radiation

Answer 14

radioactive

Question 15

electrons found in the outer most energy level of an atom

Answer 15

valece electrons