Chemiatry

Question 1

Atomic number

Answer 1

Defined by the number of protons all atoms of the same element have the same atomic number

Question 2

Atomic number

Answer 2

Defined by the number of protons all atoms of the same element have the same atomic number

Question 3

Atomic weight

Answer 3

Number below the elements symbol in the periodic table measured in atomic mass units AMU

Question 4

Covalent bond

Answer 4

A chemical bond in which electron pairs are shared between atoms

Question 5

Fission

Answer 5

A nuclear reaction occurring when a nucleus splits into smaller nuclei

Question 6

Ion

Answer 6

A positively or negatively charged particle formed when an atom or molecule gains or loses, one or more electrons and an ion is a negatively charged ion formed by electron gain. A cat ion is a positively charged ion formed by electron loss.

Question 7

Anion

Answer 7

A negatively charged ion formed by an electron gain

Question 8

Cation

Answer 8

A positively charged ion formed by electron loss

Question 9

Cation

Answer 9

A positively charged ion formed by electron loss

Question 10

Ionic bond

Answer 10

A bond between two oppositely charged ions