HS Physical Science: Atoms, Periodic Table, Radioactive decay

Question 1

An element has a half-life of 50 years. After 250 years, how much of a 1000g sample is left?

Accepted Answer

31.25g

Question 2

Which of the following has the lowest atomic number?

Accepted Answer

B

Question 3

In the picture, which particle is labeled D ?

Accepted Answer

nucleus

Question 4

Isotopes of an element contain...

Accepted Answer

Same number of protons, but different number of neutrons

Question 5

Which element has 15 protons?

Accepted Answer

P

Question 6

Which of the following has the highest atomic number?

Accepted Answer

K

Question 7

What information does this image give us?

Accepted Answer

Oxygen has 6 valence electrons

Question 8

Geiger counters are used to...

Accepted Answer

detect harmful radiation

Question 9

Alpha particles have a _______ charge and Beta particles have a _______ charge

Accepted Answer

positive / negative

Question 10

Atoms are made up of what 3 particles?

Accepted Answer

protons, electrons, neutrons

Question 11

An element has a half-life of 10 years. After 30 years, how much of a 200g sample is left?

Accepted Answer

25g

Question 12

Which of the following radiation types has the greatest penetrating power?

Accepted Answer

gamma radiation

Question 13

Elements in Group 14 have how many valence electrons?

Accepted Answer

4

Question 14

The atoms in this picture are...

Accepted Answer

different isotopes

Question 15

Which of these types of radiation does NOT cause transmutation to occur?

Accepted Answer

gamma radiation only

Question 16

Where are the most nonreactive elements found in the periodic table?

Accepted Answer

right side

Question 17

For 2 atoms to be the same element, they MUST have the same number of...

Accepted Answer

protons

Question 18

The nucleus is __________ the atom

Accepted Answer

much smaller than

Question 19

Boron has 5 protons, 5 neutrons, and 5 electrons. How many particles are in the nucleus?

Accepted Answer

10

Question 20

Where are the electrons found?

Accepted Answer

energy levels (orbitals)

Question 21

Which of these types of radiation are made of particles?

Accepted Answer

alpha and beta radiation

Question 22

Which element will have a similar electron structure to Fluorine (F)?

Accepted Answer

Br

Question 23

In the picture, which particle is labeled E ?

Accepted Answer

energy levels (orbitals)

Question 24

Boron has an atomic number of 5. How many neutrons does Boron-16 have?

Accepted Answer

11

Question 25

Elements in the periodic table are arranged...

Accepted Answer

by atomic number

Question 26

Where is MOST of the mass of an atom located?

Accepted Answer

nucleus

Question 27

In the picture, which particle is labeled A ?

Accepted Answer

neutron

Question 28

Which element has 8 valence electrons?

Accepted Answer

Xe

Question 29

How many valence electrons does nitrogen (N) have?

Accepted Answer

5

Question 30

What does the atomic mass represent?

Accepted Answer

number of protons and neutrons

Question 31

What particle(s) are found in the nucleus of an atom?

Accepted Answer

protons and neutrons

Question 32

Which of the following radiation types can penetrate paper, but will be stopped by aluminum?

Accepted Answer

beta radiation

Question 33

In the picture, which particle is labeled B ?

Accepted Answer

electron

Question 34

What is the atomic number of this element?

Accepted Answer

13

Question 35

What particle is found in the energy levels (orbitals) of atom?

Accepted Answer

electrons only

Question 36

What is the atomic mass of this element?

Accepted Answer

119

Question 37

The Sun is powered via...

Accepted Answer

nuclear fusion

Question 38

Which of these will release the MOST energy?

Accepted Answer

nuclear fusion

Question 39

BOTH nuclear fusion and nuclear fission...

Accepted Answer

Result in formation of one or more new elements

Question 40

Which of the following radiation types would be stopped by a piece of paper?

Accepted Answer

alpha radiation

Question 41

Another term for "noble gases"

Accepted Answer

inert gases

Question 42

What is the half-life of Element X shown here?

Accepted Answer

1.3 billion years

Question 43

Which of these types of radiation has a charge?

Accepted Answer

alpha and beta radiation

Question 44

In the picture, which particle is labeled C ?

Accepted Answer

proton

Question 45

How many protons does this element have?

Accepted Answer

2

Question 46

This picture is an example of what type of radiation?

Accepted Answer

alpha radiation

Question 47

What does the atomic number represent?

Accepted Answer

number of protons

Question 48

Based on its position in the Periodic Table, element Xe is a...

Accepted Answer

noble gas

Question 49

Where are the most reactive metals on the Periodic Table?

Accepted Answer

Far left column

Question 50

What process is represented in this picture?

Accepted Answer

nuclear fission

HS Physical Science: Atoms, Periodic Table, Radioactive decay

Questions 50

HS Physical Science: Atoms, Periodic Table, Radioactive decay

Questions 50