Q:

Atomic mass of first 30 elements?

Answer

Here I give you the first 30 Atomic elements names and their Atomic masses.

Atomic number Element Atomic mass

1 Hydrogen 1

2 Helium 4

3 Lithium 6.94

4 Beryllium 9.01

5 Boron 10.81

6 Carbon 12.01

7 Nitrogen 14.01

8 Oxygen 15.99

9 Fluorine 19.00

10 Neon 20.18

11 Sodium 22.99

12 Magnesium 25.31

13 Aluminium 26.98

14 Silicon 28.09

15 Phosphorus 30.97

16 Sulphur 32.07

17 Chlorine 35.45

18 Argon 39.95

19 Potassium 39.10

20 Calcium 40.08

21 Scandium 44.96

22 Titanium 47.87

23 Vanadium 50.94

24 Chromium 24. 52

25 Manganese 54.94

26 Iron 55.85

27 Cobalt 58.93

28 Nickel 58.69

29 Copper 63.55

30 Zinc 65.41

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

2 4032

Q:

Which of the properties of the element is a whole number

A) atomic mass	B) atomic number
C) atomic radius	D) atomic volume

Answer & Explanation Answer: B) atomic number

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

5 4032

Q:

What does the Aufbau Principle state

A) Electrons will be added to an atom starting from the lowest possible level or sublevel.	B) Electrons will be added to an atom only if the orbitals are different colors.
C) Electrons will be added to an atom in a random order.	D) Electrons will be added to an atom in a symmetrical manner.

Answer & Explanation Answer: A) Electrons will be added to an atom starting from the lowest possible level or sublevel.

Explanation:

The Aufbau Principle states that in the ground state of an atom, an electron enters the orbital with lowest energy first and subsequent electrons are fed in the order of increasing energies.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

0 4031

Q:

Who amongst the following is the author of the book ' Freedom from Fear '

A) Nelson Mandela	B) Aung San Suukyi
C) Taslima Nasreen	D) Benazir Bhutto

Answer & Explanation Answer: B) Aung San Suukyi

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Books and Authors

10 4030

Q:

How would you free the memory allocated by the following program?

#include "alloc.h"

#define MAXROW 3

#define MAXCOL 4

main()

{

int **p, i;

p = (int **) malloc (MAXROW * sizeof (int *));

for ( i = 0; i < MAXROW ; i++)

p[i] = (int *) malloc (MAXCOL * sizeof (int ));

}

Answer

for ( i=0; i < MAXROW ; i++)

free (p[i]);

free (p);

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: Programming

0 4030

Q:

What charge card, developed in 1950, was the first to be approved nationally in the US?

A) Discover	B) MasterCharge
C) Visa	D) Diner's Club

Answer & Explanation Answer: D) Diner's Club

Explanation:

The card was established by Frank McNamara and Ralph Schneider.

Report Error

View Answer Report Error Discuss

Filed Under: Inventions

4 4030

Q:

A linear-shaped lowland between highlands or mountain ranges created by the action of a geologic rift or fault is called?

Answer

rift valley

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: World Geography

0 4029

Q:

Which object, initially called the 'Whirlwind', was invented by Ives McGaffey in 1869 ?

A) Washing machine	B) Electric mixer
C) Vacuum cleaner	D) Blender

Questions

Quick Links