Atoms and Periodic Table

Question 1

How many protons are in the following isotope? Pd-110

Accepted Answer

46

Question 2

Who is credited with developing the modern atomic model?

Accepted Answer

All of the above

Question 3

JJ Thomson discovered which particle?

Accepted Answer

electron

Question 4

How many electrons are in the following isotope? C-12

Accepted Answer

6

Question 5

The following elements belong to which family: Neon, Argon, Krypton, Xenon

Accepted Answer

Noble Gases

Question 6

How many neutrons are in the following isotope? U-235

Accepted Answer

143

Question 7

What is the atomic number for the following isotope? U-238

Accepted Answer

92

Question 8

Horizontal rows of the periodic table are called_______.

Accepted Answer

Periods

Question 9

How many electrons does Tin (Sn) have?

Accepted Answer

50

Question 10

In 1913, ____showed that electrons could have a specific amount of energy, leading to orbits.

Accepted Answer

Niels Bohr

Question 11

The number of protons in the nucleus is called________.

Accepted Answer

atomic number

Question 12

What is the total number of neutrons from the following isotope? Ru-104

Accepted Answer

60

Question 13

How many electrons in the following isotope? U-238

Accepted Answer

92

Question 14

Francium is part of which family?

Accepted Answer

Alkali metals

Question 15

Which of the following is Not a principle of Dalton's Atomic Theory?

Accepted Answer

An atom of one element can be changed into other elements.

Question 16

How many electrons does Berryllium (Be) have?

Accepted Answer

4

Question 17

Gold (Au) can be found in which family on the periodic table?

Accepted Answer

Transition metals

Question 18

How many protons does the following isotope have? H-2

Accepted Answer

1

Question 19

How many protons and electrons does the following isotope have? Ne-20

Accepted Answer

10

Question 20

An _______ is identified by its mass number, which is the sum of the protons and neutrons.

Accepted Answer

Isotope

Question 21

Oxygen (O) is part of which of the following families?

Accepted Answer

Nonmetals

Question 22

Which of the following is the least reactive?

Accepted Answer

Xenon (Xe)

Question 23

What is the charge of a proton?

Accepted Answer

Positive

Question 24

Which of these is NOT a principle of Dalton's Atomic Theory?

Accepted Answer

An atom of one element can change into a different element.

Question 25

Which of the following is Not a family on the periodic table?

Accepted Answer

All of these are a family on the periodic table.

Question 26

Who theorized the first ideas about atoms?

Accepted Answer

Democritus

Question 27

What is the atomic number of Gallium (Ga)?

Accepted Answer

31

Question 28

The most reactive non metals are located in which part of the periodic table?

Accepted Answer

Top Right

Question 29

Atom is defined as________.

Accepted Answer

the smallest particle of an element

Question 30

Who discovered the neutron?

Accepted Answer

James Chadwick

Question 31

Who discovered the electron?

Accepted Answer

J.J. Thomson

Question 32

Which of the following non metals is the most reactive?

Accepted Answer

Neon (Ne)

Question 33

What are the vertical columns on the periodic table called?

Accepted Answer

Groups

Question 34

Who developed the first periodic table?

Accepted Answer

Dmitri Mendeleev

Question 35

Magnesium (Mg) is a _______.

Accepted Answer

Alkaline Earth Metal

Question 36

Ernest Rutherford is credited for discovering which particle of the atom?

Accepted Answer

proton

Question 37

Which of these metals in the most reactive?

Accepted Answer

Radium-Ra

Question 38

What is the charge of an electron?

Accepted Answer

Negative

Question 39

What charge is the neutron?

Accepted Answer

no charge

Question 40

What is the isotope number for this isotope? Ti-50

Accepted Answer

50

Atoms and Periodic Table

Questions 40

Atoms and Periodic Table

Questions 40