2.1 The Nature Of Matter

Question 1

How many protons and neutrons does a carbon 13 Atom have?

Answer 1

NEURONS - 7

PROTONS - 6

Question 2

How many protons and neutrons does a carbon 14 atom have?

Answer 2

NEUTRONS - 8

PROTONS - 6

Question 3

Identify two differences between carbon 12 and carbon-14.

Answer 3

One – their mass is different

Two – carbon 12 has six neutrons, carbon-14 has eight neutrons

Question 4

Identify two ways in which carbon 12, carbon 13, and carbon-14 are all alike

Answer 4

One – they both have six protons

two – they both have six electrons

Question 5

Element is a pure substance that consists entirely of one type of ____

Answer 5

Atom

Question 6

Adams of the same element that differ in the number of neutrons they contain are called___

Answer 6

Isotopes

Question 7

An atom is made up of ______

Answer 7

Protons, neutrons, &a electrons

Question 8

What is the chemical compound

Answer 8

Substance formed by the chemical combination of two or more elements in definite proportions

Question 9

What do the formulas for table salt NaC1 and water H2O indicate about the compounds?

Answer 9

One – they have a neutral charge

2–elements they are made up of

Question 10

What is the number of protons and electrons in a chloride ion?

Answer 10

Protons - 17

Electrons -18

Question 11

Number of protons and electrons in a calcium ion?

Answer 11

Protons -20

Electrons - 18

Question 12

What is the difference between an ionic bond and a covalent bond

Answer 12

Ionic bonds use oppositely charged Atoms –

covalent bonds share the same Atom

Question 13

How are chemical bonds important in metabolism

Answer 13

They help break down substances