Chemist Quest

Question 1

What is Malleability?

Accepted Answer

ability of a substance to be hammered into thin sheets, ability of a substance to be beaten into thin sheets

Question 2

The most reactive family of metals is the

Accepted Answer

alkaki Metals

Question 3

How many periods are on the periodic table?

Accepted Answer

7

Question 4

What is a model?

Accepted Answer

a representation of an event, a representation of a model, a representation of a drawing

Question 5

Define bond energy.

Accepted Answer

Energy required to break a chemical bond

Question 6

There are_____ common types of radiation and nuclear changes.

Accepted Answer

3

Question 7

What is the purpose of the conclusion?

Accepted Answer

to re-state the conclusion

Question 8

What is an electron?

Accepted Answer

negatively charged particle outside the nucleus

Question 9

Carbon-12____.

Accepted Answer

has 6 protons and 6 neutrons

Question 10

How many elements are there in the current periodic table?

Accepted Answer

118

Question 11

Why do we fill the 4s orbital before the 3d orbital?

Accepted Answer

the 4s is lower in energy than the 3d, so it is filled first

Question 12

What element has an atomic number of 1?

Accepted Answer

hydrogen

Question 13

What are atoms of the same element that have a different number of neutrons called?

Accepted Answer

isotopes

Question 14

What is the heaviest of the naturally-occurring Noble gases?

Accepted Answer

radon

Question 15

Carbon-13____.

Accepted Answer

has 6 protons and 7 neutrons

Question 16

What is electron configuration?

Accepted Answer

the arrangement of electrons in the energy levels of atoms

Question 17

A molecule containing only two atoms is called a ...

Accepted Answer

Diatomic molecule

Question 18

Radioactive decay goes according to a principal called the _____.

Accepted Answer

half life

Question 19

The 3 types of radiation are called...

Accepted Answer

alpha, beta, gamma

Question 20

What are the steps in s.m...observations,hypothesis,theory,experiment,scientific law

Accepted Answer

observations,hypothesis,theory,experiment,scientific law

Question 21

Elements are made from a single type of _______.

Accepted Answer

atom

Question 22

What is the # of orbitals in any p sublevel?

Accepted Answer

3

Question 23

Which of the following is the abbreviation for the element gold?

Accepted Answer

Au

Question 24

Radiation can result in an atom having a different atomic number.

Accepted Answer

true

Question 25

How do you determine the # of Valence electrons?

Accepted Answer

count # of s and p electrons since the most recent noble gas

Question 26

A hypothesis is proven by a(n) ___?

Accepted Answer

experiment

Question 27

What are isotopes?

Accepted Answer

atoms of the same element that have different #s of neutrons

Question 28

What are the horizontal rows of the Periodic Table called?

Accepted Answer

periods

Question 29

What is the # of orbitals in any f sublevel?

Accepted Answer

7

Question 30

What is the most common element in the universe?

Accepted Answer

hydrogen

Question 31

What is the # of orbitals in any d sublevel?

Accepted Answer

5

Question 32

What is the name of the chart that people use keep up with the elements?

Accepted Answer

periodic table

Question 33

Hydrogen____.

Accepted Answer

has only 1 proton, lightest element

Question 34

All radioactive material decays at the same rate.

Accepted Answer

false

Question 35

Variables are always specific things.

Accepted Answer

False

Question 36

A pair of electrons that is not involved in bonding and that belongs exclusively to one atom is

Accepted Answer

a lone pair

Question 37

The atomic number of an atom is the number of ______ in the atom's nucleus.

Accepted Answer

protons

Question 38

What is hydrogen atomic number?

Accepted Answer

1

Question 39

What is a proton?

Accepted Answer

positively charged particle in the nucleus

Question 40

What is the # of orbitals in any s sublevel?

Accepted Answer

1

Question 41

What family of elements is in the right-most column of the Periodic Table?

Accepted Answer

Noble gases

Question 42

Procedure that is used to test a hypothesis.

Accepted Answer

experiment

Question 43

What is the scientific method?

Accepted Answer

approach to answer to the result of a scientific problem

Question 44

In ___,Henri Becquerel expanded the field of chemistry to include nuclear changes.

Accepted Answer

1896

Question 45

Carbon-14____.

Accepted Answer

has 6 protons and 8 neutrons

Question 46

Why is nuclear chemistry important?

Accepted Answer

to trace the movement of atoms in biological systems, to date important historical artifacts

Chemist Quest

Questions 46

Chemist Quest

Questions 46